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

Răspuns :

x²-4x-1x+4-(x²+3x+2x+6)=4-2x
x²-5x+4-x²-5x-6=4-2x
-10x-2=4-2x
-10x+2x=4+2
-8x=6
x=-6/8=-3/4