4x-3 (x-1)-2-x(x+1)=0

Question

4x-3 (x-1)-2-x(x+1)=0

Answer 1

4x-3x+3-2-x2-x=0
1-x2=0
-x2=-1
x2=1
x=1

Answer 2

4x-3x+3-2-x^2-x=0
-x^2+1=0
x^2-1=0
x^2=1
x1=-1 ; x2=1
Ответ : -1;1