Question

Calculați 3(x+1)(x+2)-2(x+1)(x-2)=xla2

Answer 1

(x+1)(3x+6-2x+4)=x^2
(x+1)(x+10)=x^2
x^2+11x+10=x^2
11x=(-10)
x=(-10/11)

Answer 2

3(x+1)(x+2)-2(x+1)(x-2)=x²

3x²+6x+3x+6-2x²+4x-2x+4=x²

x²+11x+10=x²

11x+10=0

11x=-10

11x:11=-10:11

$= > x = - 10 : 11 = - \frac{10}{11}$