EmojiQueen123 EmojiQueen123

23-03-2020
Mathematics

contestada

What are the factors of x2 − 64?

A. Prime
B. (x − 4)(x + 16)
C. (x − 8)(x − 8)
D. (x + 8)(x − 8)

Respuesta :

deonliew deonliew

23-03-2020

x^2 - 64 uses the algebraic identity of a^2 - b^2
so x^2 - 64 = x^2 - 8^2 = (x - 8)(x + 8)
thus the answer should be D (not sure if i'm correct !)

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