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7.4AddingandSubtractingRationalExpressionsSpiralReview:Howdoyouaddfractions?Example1:AddingorSubtractingwithLikeDenominatorsSimplify
a) !"# +
%"# = b) (##)* −
,#)* =
Example2:AddingwithUnlikeDenominatorsFindthesum:
79/( +
/3/( + 3/ =
Example3:AddingwithUnlikeDenominatorsFindthesum:
/ + 22/ − 2 −
−2/ − 1/( − 4/ + 3 =
Tryonyourown:Findthesumordifference.
Example4:RewritingandGraphingaRationalFunctionRewritethefunction4 / = %#),
#)5 intheform4 / = 6#78 + 9.Graphthefunction.
Example5:SimplifyingComplexFractionsSimplify
5/ + 41
/ + 4 +2/
Homework:3,5,19-25odd,31,39,41,43,47,49
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