$\left(y^{16}\right)\left(y^{-5}\right)^2$

$\frac{d}{dx}\frac{x^7lnx}{e^x}$

$\lim_{x\to4}\left(\frac{x+3}{\sqrt[3]{x^2-4x}}\right)$

$\frac{4x^4+8x^3-3x-6}{x+2}$

$\frac{1}{\left(x+2\right)}-\frac{1}{\left(x+3\right)}$

$\left(\sin\left(x\right)-1\right)\left(\sin\left(0\right)+1\right)$

$-3+4\sqrt{3}tgx=-15$