Question

factoriza x^2 + 13x - 30

Answer 1

la solución sería
(x+15)(x-2)

Answer 2

$x^{2} +13x -30$
x                 +15
x                  -2

15x -2x =13x

(x+15)(x-2) = 0

x+15 = 0       x-2 = 0
x = -15          x = 2

CS= (-15;2)