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X2 5x 7
X2 5x 7 pictures 5
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X2 5x 7
y x2 5x 7
2x2 6x x2 5x 7
(x2-5x+7) dx
x2 5x 7 x k
x2 5x 7 x 1
x2-5x+7/-2x 2+3x+2 0
x2 5x 7 factorise
x2 5x 7 1
x2 5x 7 0
x2 5x 7