Question

(x+2)(x+3)-5 (x-1)=(x-1)la puterea a 2 +6

Answer 1

(x+2)(x+3)-5(x-1) = (x-1)²+6
x(x+3)+2(x+3)-5x+5 = x²-2x+1+6
x²+3x+2x+6-5x+5 = x²-2x+7
x²+11 = x²-2x+7
2x = 7-11
2x = -4
x = -2.


Succes!