Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
6. Factoring ax²+ bx + c
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Exercise 67 Page 522

4x^2-49

Practice makes perfect

We want to simplify the given expression. Recall that a product of a conjugate pair of binomials can be written as a difference of squares. ( a- b)( a+ b)= a^2- b^2 Let's use the above formula to simplify our expression!

( 2x- 7)( 2x+ 7)

(a-b)(a+b)=a^2-b^2

(2x)^2-7^2
2^2x^2-7^2
4x^2-49