Question

X2 + 4 x =2 (x-1)



( o X e elevado a dois )

Answer 1

x²+4x=2(x-1)
x²+4x=2x-2
x²+2x=-2
x²+2x+2=0
∆=4-8
∆=-4
-2±√-4/2
x= (-2±2i)/2
x= -1-1i OU x=-1+1i