1) x2+2x+x+2-x2+4x+3x+12=0
x2+3x+2-x2+7x+12=0
10x=-14
x=-1.4
2) x2-3x-2x+6-x2-4x-x+4=0
-5x+6-5x+4=0
-10x=10
x=-1
-3x=-2
x=²/₃
1) x2+2x+x+2-x2+4x+3x+12=0
x2+3x+2-x2+7x+12=0
10x=-14
x=-1.4
2) x2-3x-2x+6-x2-4x-x+4=0
-5x+6-5x+4=0
-10x=10
x=-1