x=0
x^2 - 2x + 1 = 0
x^2 + x = 0
x^2 -10x + 8 = 0
x^2 = 64
x + 2 = -1
x^5=2225
x^4 + 6x^2 + 3 = 0
x^4 = -x^2 +1
x^2 = 4
5x + 3 = 8 + x
x^4 + 2x^2 + 1 = 0
x^9=-3
10 + x = -x
x^8=256
x^2 -4x + 4 = 0
2x^2 + 9x - 8 = x^2 - x
x^2 - 64x = 0
