$15+16y-5-y$

$\left(2x\:-\:5\right)^3$

$\frac{\sin\left(y+x\right)}{\sin\left(y\right)\cos\left(x\right)}=1+\cot\left(y\right)\tan\left(x\right)$

$\left(-2\sqrt{2}-i\right)^5$

$\int_{-e^2}^{e^2}\left(\ln\left(x^2\right)\right)dx$

$\left(x+3\right)\left(x-3\right)-2\left(x-13\right)=x^2-9$

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