Question

Resolver:
$\frac{2 x^{2} +4x-30}{2x-6} =$

Answer 1

$2x^2 + 4x - 30 = 2(x^2 + 2x - 15) = 2(x + 5)(x - 3)$
$2x - 6 = 2(x - 3)$
Así que tenemos:
$\frac{2x^2 + 4x - 30}{2x - 6} = \frac{<span>2(x + 5)(x - 3)</span>}{2(x - 3)}$
$= x + 5$