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x^{2}-8x+12
(x-4)²-4
4x^{2}+40x+103
...
-3x^{2}-18x-23
x^{2}-8x+11
-4x^{2}-32x-64
-2x^{2}-20x-55
-5x^{2}+40x-79
x^{2}-2x-3
5x^{2}+50x+122
-x^{2}+8x-12
3x^{2}+6x+1
4x^{2}+40x+101
-3x^{2}-24x-51
5x^{2}-30x+40
-3x^{2}-12x-11
5x^{2}+20x+20
-4x^{2}+8x-2
2x^{2}-20x+46
2x^{2}+16x+27
-4x^{2}-16x-18
5x^{2}+50x+120
x^{2}+2x
4x^{2}-24x+40
-4x^{2}+16x-15