How do you factor x squared-64?

Answer 1

x2 - 64 can be written as x2 - 82, which is of the form of a2 - b2.

And a2 - b2 is factored as (a-b)(a+b).

Therefore, x2 - 64 is factored as (x+8)(x-8).

Answer 2

(x - 8)(x + 8)