$5x+3y-2z+4z-3y+4x$

$\lim_{x\to\infty}\left(\frac{\sqrt[x]{e\:}-1}{\frac{1}{x}}\right)$

$-16\cdot4$

$\int\:\left(\frac{2}{\sqrt{x^3}}-\frac{5}{\sqrt[3]{x^2}}\right)dx$

$3mn^2-2mn+10m^2-3mn+2mn-2m^2$

$\int\left(5x^3sin\left(4x\right)\right)dx$

$\int9sin^2x\cos^3\left(x\right)dx$