Question

Factor the expression below.

x² - 64
A. (x + 16)(x - 4)
B. (x-8)(x-8)
C. (x+3)(x-8)
D. (x - 16)(x - 4)


help

Answer 1

( x + 8 )( x - 8 ); None of the above

Explanation:

Apply quadratic formula a^2 - b^2 = ( a + b )( a - b );

x^2 - 64 ⇒

x^2 - 8^2 ⇒

Answer: ( x + 8 )( x - 8 ); None of the above