Transcript Document

How do you check for extraneous
solutions?
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In this lesson you will learn to identify
extraneous solutions in rational
equations by checking solutions.
Let’s Review
x = …?
A Common Mistake
Core Lesson
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5x(x+2)*
= 5x(x+2)*
Core Lesson
10x2-10x
= x2 + 2x
9x2-12x
= 0
3x(3x-4)
= 0
x = 0,
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In this lesson you have learned to
identify extraneous solutions in rational
equations by checking solutions
Guided Practice
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Extension Activities
What is an extraneous solution? Why are we concerned
about them in math?
Extension Activities
Can you solve the following equation in a way that does
not result in an extraneous solution?
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Quick Quiz
Identify extraneous solutions; solve for x
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Identify extraneous solutions; solve for x
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