How do you factor x^2 - 16?

1 Answer
Jim G.
Jun 8, 2018

(x-4)(x+4)

Explanation:

x^2-16" is a "color(blue)"difference of squares"

"which factors in general as"

•color(white)(x)a^2-b^2=(a-b)(a+b)

"here "a=x" and "b=4

x^2-16=(x-4)(x+4)

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