Question

(x-3) (x + 2) = -4 gente alguém me ajuda nessa

Answer 1

(x-3).(x+2)=-4
x²+2x-3x-6+4=0
x²-x-2=0

x=[-(-1)±√-1²-4.1.(-2)]/2.1
x=[1±√1+8]/2
x=[1±√9]/2
x=[1±3]/2

x¹=(1+3)/2
x¹=4/2
x¹=2

x²=(1-3)/2
x²=-2/2
x²=-1

Answer 2

(x-3) (x + 2) = -4

x2 -3x +2x - 6 + 4 = 0

x2 - x - 2 = 0 

Δ = (-1)² - 4.1.(-2) = 1+8 = 9

x = 1+/-3
         2

x1 = 2  ; x2 = - 1