$x^3+x^2-8x-12$
$726+85$
$2\cos^22x-\cos2x=0$
$2a+50+4a$
$\frac{dy}{dx}-y=x^2y$
$8-\left(-3\right)\cdot\left(-15\right)$
$-10-6-4-2+0+2+4+6+10$
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