Question

simplify
(squrt(x)-7)/(x-49)

Answer 1

= (sqrt(x)-7)/ (sqr(x)-7)((sqr(x)+7) = 1/((sqr(x)+7)

Answer 2

= (sqrt(x) -7)/(x-49)

Answer 3

that's possible :

\[(\sqrt{x}-7)/(\sqrt{x}-7)(\sqrt{x}+7) = 1/(\sqrt{x}+7)\]

Answer 4

also you have as:

\[[1/(\sqrt{x}+7) ]*[ (\sqrt{x}-7)/(\sqrt{x}-7)] = (\sqrt{x}-7)/(x-49)\]