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