$\sqrt{\left(x^{2}+x^{3}\right)+\left(x^{-2}+x^{-3}\right)}$

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

$-5\cdot1.5$

$\frac{d}{dx}8^y$

$\lim_{x\to\infty}x\sqrt{x^2+1-x}$

$\csc\left(2x\right)^2+\cot\left(2x\right)\csc\left(2x\right)=\frac{1}{2}\csc\left(x\right)^2$

$\frac{2xy^4}{2y^2\cdot\left(x^{-2}y^{-4}\right)^3}$