Recall from Lesson 8-4 that
Algebra For all real numbers a and b:
Examples
What is the factored form of
Can you use the rule for the difference of two squares?
Yes. The binomial is a difference and both its terms are perfect squares.
Think | Write |
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Rewrite 9 as a square. |
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Factor using the rule for a difference of two squares. |
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Check your answer by multiplying the factored form. |
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What is the factored form of each expression?
What is the factored form of
When is a term of the form