Question

si (x2+5x+6x) / (x+2) =12 ,entonces x =

Answer 1

[(x^2 + 5x + 6) / (x + 2)] = 12, así deberia ser tu ejercicio.

(x + 3) (x + 2) / (x + 2) = 12
x + 3 = 12
x = 9

Answer 2

$\frac{x^{2}+5x+6x}{x+2}=12 \\ \\ x^{2}+5x+6x=12x+24 \\ x^{2}+5x+6x-12x-24=0 \\ x^{2}-x-24=0 \\ \\ x= \frac{1+- \sqrt{1^{2}+4*24}}{2}= \frac{1+- \sqrt{97}}{2}= \left \{ {{5,424428901} \atop {-4,424428901}} \right. \\ \\ Soluci\'on: \\ x_{1}=5,424428901 \\ x_{2}=-4,424428901$