sarahalghannam sarahalghannam

01-10-2019
Mathematics

contestada

2 Points
What is the factorization of the expression below?
9x2-16

A. (9x - 4)(x-4)
B. (9x + 4)(x-4)
C. (3x+4)(3x-4)
D. (3x - 4)(3x - 4)
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Respuesta :

kshepherd866ff kshepherd866ff

01-10-2019

Answer: I think it's D. but i'm not sure

Step-by-step explanation:

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Sarah0404 Sarah0404

01-10-2019

Answer:

C. (3x+4)(3x-4)

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of square formula, a^2-b^2 =(a+b)(a-b) where a=3x and b=4.

Answer Link

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