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OpenStudy (anonymous):
What are the factors of x2 - 16 ? Answer: a. (x+4)(x-4) b. (x-4)(x-4) c. (x+4)(x+4) d. x(x -4) e. (x^2-16)(x^2+16)
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OpenStudy (anonymous):
Is there a portion of the problem that is particularly confusing to you?
OpenStudy (anonymous):
x^2 - 16 is a difference of two squares, so you simply find the square root of them both. (x _ 4)(x _ 4) Make one +, the other -. Doesn't matter which goes first. (x+4)(x-4)
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