$\left(x^2yz^3\right)\left(-2xyz\right)$

$\lim_{x\to\infty}\left(\frac{3x^2+8}{5x^3+7}\right)$

$2x^3+5y-2=0$

$\left(\sin\left(x\right)-\csc\left(x\right)\right)\left(3\sin^2\left(x\right)+3\csc^2\left(x\right)+3\right)$

$6y+5-7y-2$

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

$\lim\:_{x\to\:2\:\:}\frac{x^2}{1-\sqrt{cosx}}$