$x^2-8x^2+4$

$\frac{sin\:4x}{cos\:4x}+\frac{1}{tan\:4x}$

$\left(3y\:\:\:\:\:+8w\right)\left(_{1.5y-14z-2w}\right)$

$\lim_{x\to\sqrt{\pi}}\left(\frac{\sin\:\left(x^2\right)}{x-\sqrt{\pi}}\right)$

$\frac{d^2}{dx^2}\left(f''\left(x\right)=10x^3-36x^2\right)$

$\int\frac{16\left(x+2\right)}{\left(x-2\right)\left(x^2+4\right)^2}dx$

$\left(-70\right)^3$