Question

what is x^2-16/x-4 simplified

Answer 1

= 3(x^2 - x - 20)
- can you factor whats in the parentheses?

Answer 2

Hmm Idk what cwrw told, but here's what you should do.
\(x^2 - 1 6 = (x + 4)(x - 4)\). The numerator is factored.

Answer 3

\( \color{Black}{\Rightarrow\Large{(x + 4)(x - 4) \over (x - 4)} }\)

Answer 4

If you want to know more about how \(x^2 - 16 = (x + 4)(x - 4)\), see my tutorial here: http://openstudy.com/updates/4fd62be0e4b04bec7f17374c