$\frac{dy}{dx}\left(y=\left(5x+2\right)^{3x-4}\right)$

$\int\frac{\cos^2\left(z\right)}{\sin^2\left(z\right)}dx$

$\left(4x-9\right)+8\left(2x+3\right)-7x$

$\left(2x^2-7y\right)\left(2x^2+7y\right)$

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

$4x^2+3x-2xy$

$\infty^{\cdot}\left(-96\right)$