Question

which of the following is the simplified form of (x^2)-16/x-4

1) x+4, with the restriction x≠ -4
2) x-4, with the restriction x≠ -4
3) x+4, with the restriction x≠ 4
4) x-4, with the restriction x≠ 4

Answer 1

\[x ^{2}-16/(x-4) = (x-4)(x+4)/(x-4) = x+4\]

Answer 2

would that be 1 for 3?

Answer 3

3