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