Question

Resolva: Com Cálculo Passo a Passo pfvor Obg!!!!!!!

( x+1). ( x+2) -2 (x-3) = 10

Answer 1

( x + 1)( x + 2) - 2 (x - 3) = 10

x^2 + 3x + 2 - 2x + 6 = 10

x^2 + x - 2 = 0

os coeficientes

a = 1, b = 1, c = -2

delta

d = 1 + 8 = 9

as raízes

x1 = (-1 + 3)/2 = 1

x2 = (-1 - 3)/2 = -2