Solve (2x2+5x−8)+(7x2−9x+3)−(9x2−4x−6)(2x^{2}+5x-8)+(7x^{2}-9x+3)-(9x^{2}-4x-6)(2x2+5x−8)+(7x2−9x+3)−(9x2−4x−6)
0
x−1x-1x−1
x+1x+1x+1
1