$-x^2+7x-10=0$
$x^2+6x-7=0$
$32x^2-18\cdot x-17=0$
$x^2+x+1=0$
$x^2+2x-15=0$
$x^2-x+1=0$
$x^2-8x-1008=0$
Quadratic equations
1. See formulas
~ 0.05 s
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