$\frac{d}{dx}\left(5^{xy}-10x=\tan\left(8y\right)\right)$

$12+\frac{x}{2}=87$

$\frac{\frac{\left(q^2-1\right)}{q^2+2q-3}}{\frac{q^{-4}}{q^{+3}}}$

$\left(-3y^2\right)\left(2y^4\right)$

$\left(3y+x\right)\left(3y-x\right)$

$7\left(+3\right)+8\left(-2\right)-1$

$\frac{d}{dx}x^3y^2-8x^2y+x=2$