Question

(a+8b)//(a^2-64b^2)=

Answer 1

$frac{a+8b}{a^2-64b^2}=frac{a+8b}{(a-8b)(a+8b)}=frac{1}{a-8b}$

Answer 2

$frac{a+8b}{a^2-64b^2} =frac{a+8b}{(a-8b)(a+8b)} =frac{1}{a-8b}$