$w^2+10w+10$
$x\frac{dy}{dx}+2y=3x^2+2x$
$1-4\left(x-6\right)-6\left(8-2x\right)$
$480\cdot0$
$2\sqrt{a}-9\sqrt{a}$
$z^2-2z-4$
$\left(\frac{\cos\left(a\right)}{1+\sin\left(a\right)}+\frac{\cos\left(a\right)}{1-\sin\left(a\right)}\right)$
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