Question

How do you factor 64-x^2 completely?

Answer 1

$64-x^2$ 

$This \ fits \ the \ form \ a^2-b^2$ 

$Rewrite \ it \ where \ a=8 \ and \ b=x$ 

$Use \ Difference \ of \ Squares$ $a^2-b^2=(a+b)(a-b)$

$(8+x)(8-x)$