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Kuta Software - Infinite Algebra 2 Name_______________________________________ Rational Expressions Date_______________ Period____ State the excluded values for each. I) 60x3 2) 70v2 12x 100v 3) ,n+7 n2+6n+5 nr + 4i,z —21 ii + 1 5) 35x—35 6) —n2+16n--63 25x—40 n—2n—35 Simplify each and state the excluded values. ) 7p+4 8) ISa—IS 9) 2a+lOa 10) p2—3p—1O 3cr+15a p+p—2. 11) x2+x—6 12) a2+Sa+4 .r+8x+15 cr+9a+20

Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

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Page 1: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name_______________________________________

Rational Expressions Date_______________ Period____

State the excluded values for each.

I) 60x3 2) 70v212x 100v

3) ,n+7 n2+6n+5nr + 4i,z —21 ii + 1

5) 35x—35 6) —n2+16n--6325x—40 n—2n—35

Simplify each and state the excluded values.

) 7p+4 8) ISa—IS

9) 2a+lOa 10) p2—3p—1O3cr+15a p+p—2.

11) x2+x—6 12) a2+Sa+4.r+8x+15 cr+9a+20

Page 2: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

x2—2x—1S 10x—613) x2—6x+5 14) 10x—6

15) (v—7)(v+8) 1 16) ÷ (,~— 1)(n+3)(v+8)(v—10) v—10 n+2 (j~1)2

17) x+3 3(x—6) x—8 4x(x+10)18)4 3(x+3) (x+6)(x—8) x+1O

19) 2b2—l2bb---6 20) 1 ÷ 6—tib+5 b+5 ,i+9 3n—18

21) 28—7b 1 22) 2 v2—12v+27b—4 b+1O v2—12v+27 3

23) 1 8—7x—x2 x+524)~ 5p3—35p2 x+8 9x—9

25) x2—16 x2+x—90 26) 10x2—20x 16x3+80x29—x r+14x+40 40x3—80x2 6x+30

Page 3: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name

Rational Expressions Date_______________ Period____

State the excluded values for each.

1) 60x3 2) 70v12x lOOv

3) m+7 4) n2+6n+5nr+4m—21 n+1

5) 35x—35 6) n2-i-16n—6325x—40 n2—2n—35

{1Simplify each and state the excluded values.

) p+4 8)p +6p+8 iSa—iS

1 3{1}p+2 s(a i)

9) 2a +iOa 10) p23p 103a2 iSa p2+p—2

2;{0, 5 p ~;{2, }

11) x2+x—6 12) a +Sa+4x2+8x+15 a2+9a+20

x—2 ~ ~+5

Page 4: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

13) X2 2x—15 14) lOx—6r—6x+5 lOx 6

i, P15

(v—7Xv+8) 1 n+3 (n—l)(n+3)(v+8)(v—1O) v—10 n+2 (fli)2

fl 1;{ 21 3}ii + 2

x+3 3(x 6) x—8 4x(x+1O)4 3(x+3) (x+6)(x—8) x+lO

4x 68 10x+6

19) 2b2—l2bb—6 20) 1 ÷ 6—nb+5 b+5 n+9 3n—18

2h, 5,6 ;{ 9 6}ii + 9

21)28 7b 1 22) 2 v2—12v+27b 4 b+1O v2—12v+27 3

4 iO} 2.{39b+10 3

23) _!__÷ 9’~36 24) 8—7x—x2 x+55p2 5p3—35p2 x+8 9x—9

{o (x9(p 4)’ 9

25) x2—16 x2+x—90 26) 10x2—20x 16x3+80x29—x x2+14x+40 40x3 BOx2 6x+30

(x 4);{9 4 io} ;;{o 2 s}

Page 5: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 1 Name_______________________________________

Adding + Subtracting Rational Expressions Date_____________ Period___

Simplify each expression.

u+Sv u—6v Sn 2m+4n1) 2) +8vtr 8vtr 30m 3Oin

3) a+2b — Sa+4b 4) x+y — 6x+y6a3 6a3 i8xy i8xy

4a—5 a—i 5x—4 — x+65) 6a2 + 30a + + 6) 9x3 + 27x2 9x3 + 27x2

b—3 4b n—4 n+i7) + 8),i2b+i8 12b+18 tr—n—20 n—n—20

7x x—2 8 49)—— 10)2x 20x+i6 7v—6 3r

ii) 7v 8v—4 12) — ___

8 Sv—2 n+7 ;i—2

Page 6: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

7 7 6 713) 3n2+24n — 14) v—2 — 2v+7

6x 7 5v S16) +

3 lSx+3 v—3 v+6

4x 5 2 6x17) x2+4x—5 —— 18) x+3 — 2x+1

19) 4x — 4x 20) 2x — 2x+3 x+6 3x+3 x+5

21) 6 + 6 22) v—2 +3vx—2 x+1 3v4—15v3—18v2

Page 7: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software Infinite Algebra 1 Name

Adding + Subtracting Rational Expressions Date_____________ Period___

Simplify each expression.

u+Sv u—6v Sn 2m+4n1) — 2)—+

8v2u2 8v2u2 30m 30m

9n 2mOni

3) a+2b — Sa+4b 4) — 6x+y6a3 6a3 iSxy l8xy

—2a b30

4a—5 a—i Sx—4 — x+65) 6a2-t-30a ~6a2+3oa 6) 9x3+27x2 9x3+27x2

So 6 4x—1O6a +30a 9x +27x

b—3 4b n—4 n+i7) + 8)212b+i8 12b÷18 n —n—20 n —n—20

Sb 3 212 3l2h+18 n 20

7x x—2 8 49) — 10)2x 20x+i6 7v—6 3v2

69x 58 24v2+28v 244(5 i + 4) 3v2(7v 6)

11) 7v 8v—4 12)8 Sv—2 ii 7 n—2

35v 78v+32 3,1—578(Sv 2) (n + 7)(n 2)

Page 8: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

13) 14) 6 73n2+24n 2n v—2 2v+7

154 2112 Sv+566,i(iz + 8) (2v + 7)(v 2)

6x 7 Sv 515) + 16) +3 15x+3 v 3 v+6

30x +6x+7 S +35v 153(Sx+ (v+6)(v 3)

17) 4x 18) 2 — 6xx2+4x—5 4 x+3 2x+1

4x 5x +25 4x+2 6x4(x+5)(x 1) (2x+1)(x+3)

19) 4x — 4x 20) 2x — 2x+3 x+6 3x+3 x+5

2x 2.~ +4x 6(x+3)(x+6) 3(t+1)(t-i-5)

6 6 v—221) + 22) +3vx—2 x+1 3v4—15v3—18v2

12x 6 9v 45v4—54v3-i-v—2(x+ 1)(x 2) 3v (v+ 1)(v—6)

Page 9: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name___________________________________

Adding/Subtracting Rational Expressions Date__________ Period

Simplify each expression.

it—i’ 6u—3v m—3n tn+3n1) + 2) — _____

8v 8v 6m3n 6m3n

S 5a+1 53), + 4) , + 7a+3a+2 a2+3a+2 lO,r+16n+6 10n+16n+6

r+6 r+l x+2 x+35) + 6)

3r—6 3r—6 2x2+l3x+20 2r+13x+20

7) 6 —~ 8)6— x+Sx—1 4 (7x—S)(x+4)

3 4 3 79) + 10) ., ——

x+7 x—8 4ir+4v 2

7 8 5 41211)—— 12) +3 12x—8 ,i+S 2n+6

2x 6x 2 813) + 14) 2Sx+4 2x+3 3x +12x 2x

Page 10: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

7n 8 2 415) + 16) +,z+1 iz—7 n+8 n+1

3 3 3 717)—— 18) +8 3x+4 b—8 b+3

3 7 4 219) + 20) — ____

x+6 x—2 x+1 x+2

Sn+5 7n 3 621) +— 22) +5n2+35n—40 3,7 n—5 3,z—8

25 24) 84 4 1623)

1 4 995 25

a a 525)255 26)

a 5 4in in

Critical thinking questions:

a c 28) Split into a sum of two rational expressions27) Simplify: — + — with unlike denominators:b d

2x +3+ 3x +2

Page 11: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name

Adding/Subtracting Rational Expressions Date_____________ Period___

Simplify each expression.

u—v 6u—3v m—3n m+3n1) + 2) — 38v 8v 6m3n 6ni n

7,, 4v8v

S Sa+1 S n—6___3) + 4)a2+3a+2 a2+3a+2 10n2+16n+6 10n2+16n+6

6 5c 1+na +3c+2 iOn +16n+6

r+6 r+i x+2 x+35) + 6)

3r—6 3r—6 2x2+13x+20 2x +13x+20

2r+73r 6 2x2+ 3x+2

7) 6 8)6— x+Sx—1 (7x—5)(x+4)

24 5x2 Sx 42x2+ 37x—1254(x i) (7x 5)(x+4)

9) + 10) 2 ——

x+7 x—8 4v +4v

7x+4 3 14v 14v(x+7)(x 8) 4v(v+

7 8 5 4nii) 12) +3 12x—8 n+5 2n+6

21x 20 5n+ 5+2,i3(3x 2) (‘~ + 3)(n + s)2x 6x 2 813) + 14)

Sx+4 2x 3 3x2+12x 2x

3 +30x 50+12x(5x + 4)(2x + 3) 3x(A + 4)

Page 12: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

7n 8 2 415) + 16) +n+1 ii 7 n 8 n+1

7n 41n+8 6,z+34+ 1)(n 7) (n + i)(n 8)

17)~— ~ 18) +8 3x+4 b—8 b+3

9t 2 Ob 478(3x + 4) (b + 3)0 8

19) + 20) — 2x+6 x—2 x+1 x+2

lOx+36 2x+6(x+6)(x 2) (x+1)(x+2)

Sn+5 7n 3 621) 22) +5n2+35n—40 3n n—S 3n—8

52n 53 7n lSn 543(n + 8)0 i) (3rz 8)(n 5)

25 24) 84 4 1623)

1 4 995 25

a a S

25) 25 ~ 26)a 5 4

m m

Critical thinking questions:

a c 28) Split into a sum of two rational expressions27) Simplify: -~ + with unlike denominators:2x + 3

ad+bc 2x +3x+2bd

Man olutions Ex:x+1 x+2

Page 13: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name_______________________________________

More on Factors, Zeros, and Dividing Date_____________ Period___

Factor each ~&fiad-aflze~os,- One factor has been given.

1)f(x)=x3+9x2+23x+15;x+5 2)f(x)=x3—x2—14x+24;x—3

3) f(x)=x4+3x3—13x2—lSx; x—3 4) f(x)=x3—12x2+47x—60; x—3

5) f(x)=x3 —7x2 +2x+40; x—5 6) f(x)=x3 —3x2 —9x+27; x—3

7)f(x)=10x3+37x2+37x+6; 5x+1 8)f(x)=25x3+150x2+131x+30; 5x+3

Page 14: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

9) f(x)=5x3+21x2—21x--5; x+5

11) f(x)=51+9x2—26x—24; x+3

Factor each

13) f(x)=5x3+

10) f(x)=3x3—4x2—9x+10; x—2

12) f(x)=6x3+7x2—1; 2x+1

~19x2~2x -~

all zeros. One zero has been given.

2 14) f(x)=25x4

15) f(x)=3x4+5x3-i-81x+135; —~16) f(x)=2x4—x3—18x2+9x —3

+32x+20;!2

18) f(x)=3x3 —35x—12; 317) f(x)= 101

Page 15: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name

More on Factors, Zeros, and Dividing Date______________ Period____

Factor each aml-fhid-aII-zeros1- One factor has been given.

l)f(x)=x3+9x2-i-23x+15;x-i-5 2)f(x)=x3—x2—14x-i-24;x—3

Factor to: f(x) — (.~ + I )(x + + s) Picto s to. f(x) )(x + 4)(x 3)

3) f(x)=x4+3x3—13x2—15x; x—3 4) f(x)=x3—12x2+47x—60; x—3

Factor to f(x x(x l)(x+ 5)(x 3) Factors to: f(x) = (x 4)(x 5)(x 3)

5) f(x)=x3—7x2+2x-i-40; x—5 6) f(x)=x3—3x2—9x+27; x—3

Factors o f(x) (x + 2)(x 4)(x s) Factors to f(x) (x + 3)(x — 3)2

7)f(x)=10x3+37x2+37x-i-6; 5x+1 8)f(x)=25x3+150x2+131x-i-30; Sx+3

Factors to f(x) = (2x + 3)(x + 2)(5x + i) acto s to: f(x) — (Sx + 2)(x + 5)(Sx + 3)3 1 2 32 5 5’ ‘5

Page 16: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

9) f(x)=5x3+21x2—21x--5; x+5

actors to: f(x) = (5x + 1)(A — 1)(x + 5)1S

10) f(x)=3x3—4x2—9x+1O; x—2

Factors o f(x) — (3x + 5)(x53

i)(x 2)

Factor each and find all

13) f(x)=5x3+4x2 20x

15) f(x) = 3x4 +5x3 + 81x+ 135;

17) f(x)=10x3—41x2+32x+

Facto s 0: f(x) (Sx +12 5Zeros: , 2,15 2

i)(x 3)(x+3)

+ )(x+4)(r 3)

11) f(x)=5x3+9x2—26x—24; x+3

Factors to: f(x) — (5x + 4)(x 2)(x + 3)4 15’ ‘ 3’ ‘ 2

One zero has been given.

12) f(x)=6x3+7x2—1; 2x+1

Factors to: f(~)—(3~ iXx+ 1)(2x+ i)

19x2—2x; ~5

x(5r+1) (Facto s to: f(x) = (5x + 4)(x

14Zeosi ,2215

2)14) f(x)=25x4—

Factors to f

mult.2,25

— — 18x2 + 9x; —3

Factors to f(x) — x(2x1, ~2

Facos o:f(x)=(x+

Zeros { ~ 3 + 3i~2

‘~( 73)~r 3x3

+ 9)(3x +5

2 3

Zeros: 0

S2

18)

(~ 2)(2x S

4x2—35x—12; 3

Factors to:

Zeros: {3

Page 17: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name_______________________________________

Factoring Quadratic Form Date______________ Period___

Factor each completely.

1) u4+2u2 2) x4+x2—12

3) a4+6a2+S 4) x4—8x2+15

5) u4~4u2 —5 6) ,n4+9m2+20

7) x4+4x2+3 8) x4—7x2+1O

9) 74 — 54,~2 — 16 10) 7u4 + 41u2 + 30

11) 5x4—9x2+4 12) 3x5—2x3—8x

Page 18: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

13) 2x6+13x4+6x2 14) 2a4—6a2+9

15) 7m4—44m2+12 16) 3u4—u2—14

17) x6—9x3+8 18) 6x9n—30x5n—300xn

19) x6+4x3—60 20) 5nu8—15nu4+40n

21) x6+2x3—3 22) m6—81

23) —x6+2?+15 24) x7m+2x4m—lSxm

Critical thinking questions:

25) Whyisthisnotinquadraticform? 26) Factor x2”+9x”—10+ 5x’ +6

Page 19: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name_______________________________________

Factoring Quadratic Form Date______________ Period___

Factor each completely.

1) u4+2u 2) x4+x2—12

u (, + 2) 3)(.x + 4)

3) a4+6a2+5 4) x4—8x2+15

)(a +s) (1 3)(x2 s)

5) u4—4u2—5 6) m4+9m2+20

5)(u + i) (in + 4)(rn + s)

7)x4+4x2+3 8)x4—7x2+1O(x2+3)(x2+ ) Cr 2)(x s)

9) 7m4—54m2—16 10) 7u4+41u2+30

(7m + 2X,n 6)(u2 + 5)

11) 5x4—9x2+4 12) 3x5—2x3—8x

(5x 4Xx+ i)(v .x(3x +4)(x2 2)

Page 20: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

13) 2x6+13x4+6x2 14) 2a4 6a2+9

x (2A + OCt + 6) Not actorable

15) 7m4—44rn2+12 16) 3u4—u2—14

iO,2 + 2)

17) x6—9x3+8 18) 6x9n—30x5n—300xn

Ct 2)(x2 + 2x + 4)(x 1)(x x i) 6xn(x4 io)(t4 5)

19) x6+4x3—60 20) Snu8—15nu4-t-40n

(x 6)(x~

21) x6+2x3—3 22) m6 81

)(x + x + 1)(x 3) (in + 9)(m

23) —x6 + 2x3 + 15 24) x7m + 2x4m — lSxm

(x3 s)( + 3) xrn(x 3)(x + s)

Critical thinking questions:

25) Why is this not in quadratic form? 26) Factor: x2” + 9x” — 10x6+5x4+6 (~ +

The mkl le term shou d have not

Page 21: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name___________________________________

Factoring: All Techniques Combined (Hard) Date_________ Period

Factor each.

1)x3—5x2—x+5 2)x4—2x2—15

3) x6—26x3—27 4) x6+2x4—16x2—32

5) x4—13x2+40 6) x9—x6—x3+l

7) x6—4x2 8) x4+14x2+45

Page 22: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

9) 2x4+x2—6 10) 2x2—13x+20

11)4x3—x2—4x+1 12)4x8—61x4+225

13) 5x2+24x—5 14) 5x2+29x+20

15) 4x2+4x—15 16) 10x3—8x2+25x—20

17)27x9+x6—27x3—1 18)8x4+10x2—3

Page 23: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

Kuta Software - Infinite Algebra 2 Name___________________________________

Factoring: All Techniques Combined (Hard) Date_____________ Period

Factor each.

1)x3—5x2—x-i-S 2)x4—2x2—15

(x 5)(r+1)(x i) (~ 5)(x +3

3)x6—26x3—27 4)x6+2x4—16x2—32

(~ 3)(x2 + it + 9)(x + 1)(x x + i) (x2 2)(x + 4)(x + 2)(x 2)

5)x4—13x2+40 6)x9—x6—x3+1

(x 5)(x 8) (x 1)(x +x+1)2(x+1)(x —x+1)

7) x6—4x2 8) x4+14x2+45

x(x 2)(x +2) (~ +5)(x 9)

Page 24: Rational Expressions - Mathkjohnson/math1010su11/Practice0630.pdf · Kuta Software-Infinite Algebra 2 Name Rational Expressions Date_____ Period____ State the excluded values for

9) 2x4+x2—6 10) 2x2—13x+20

(2x2 — 3)(x2 + 2) (2x 5)(x 4)

11)4x3—x2—4x-i-1 12)4x8—61x4+225

)(x+ i)(r (it + 5)(2x 5)(x + 3)(x 3)

13) 5x2+24x—5 14) 5x2+29x+20

(Si 1)(x+S) (5x+4)(x+5)

15) 4x2+4x—15 16) 10x3—8x2+25x—20

(2x 3)(2x + 5) (Si 4)(2x + 5)

17) 27x9+x6—27x3 —1 18) 8x4+ lOx2 —3 (2x+ )(2x— 1)(2x2 +3)

(3A+1)(9x 3c+ )(x i)(r x+ )(x 1)(x +i+i)