x2
x
=0
10x2
10x2-20x
10x2-19x
10x2-18x
10x2-17x
10x2-16x
10x2-15x
10x2-14x
10x2-13x
10x2-12x
10x2-11x
10x2-10x
10x2-9x
10x2-8x
10x2-7x
10x2-6x
10x2-5x
10x2-4x
10x2-3x
10x2-2x
10x2-x
10x2+x
10x2+2x
10x2+3x
10x2+4x
10x2+5x
10x2+6x
10x2+7x
10x2+8x
10x2+9x
10x2+10x
10x2+11x
10x2+12x
10x2+13x
10x2+14x
10x2+15x
10x2+16x
10x2+17x
10x2+18x
10x2+19x
10x2+20x
10x2+21x
10x2+22x
10x2+23x