Răspuns :
7x-22=3x
7x-3x=22
4x=22
x=5.5
(×+1)(×-2)(×+3)=0
x²-2x+x-2+x²+3x+3-x²-3x+2x+6=0
x-2+x²+3+6=0
x=-7
7x-3x=22
4x=22
x=5.5
(×+1)(×-2)(×+3)=0
x²-2x+x-2+x²+3x+3-x²-3x+2x+6=0
x-2+x²+3+6=0
x=-7