$11sin^2x-7sinx=3$
$7x^2\left(14x^2+28x^5\right)$
$3a^2-a-10$
$\frac{6x^3-3x^2-8}{2x+3}$
$-3+4+5-6-9+1-2$
$\left(\sqrt{x}-10\right)\left(\sqrt{x}+10\right)$
$s=t^3-6t^2+9t$
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