Question

2. (x-2)+5. (2-x)+6. (x+1)=0

Answer 1

2. (x-2)+5.(2-x)+6.(x+1)=O
8x-5x-4+10+6=O
3x-4+16=O
3x+12=O

Answer 2

 2x - 4 + 10 - 5x + 6x - 6 = 0 

2x - 5x + 6x = +4 -10+6 

3x = 0

(Eu acho)