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How do you identify extraneous solutions in radical equations?. = x + 2. In this lesson you will learn to determine if a radical equation has an extraneous solution by solving. 5 is the radicand. = . -2. = x -7. 2. 2. = x -7. x-1= x 2 -14x + 49. x 2 -15x + 50 = 0. x = 5, x = 10. - PowerPoint PPT Presentation
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How do you identify extraneous solutions in
radical equations?= x + 2
In this lesson you will learn to determine if a radical equation has an extraneous solution by
solving
Let’s Review
Let’s Review5 is the
radicand
A Common Mistake
= -2
Core Lesson = x -7
2 = x -7 2
x-1= x2 -14x + 49
x2 -15x + 50 = 0
x = 5, x = 10
In this lesson you have learned to check for extraneous solutions by substitution
Guided Practice =
Extension Activities
How would you solve the following equation? Be sure to identify any extraneous solutions.
- =3
Extension Activities
What would be an extraneous solution for the following equation? How do you know?
= x
Quick Quiz
Solve for x; identify any extraneous solutions
Solve for x; identify any extraneous solutions
=
- =2
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