$\sqrt{\left(a+b\right)}\left(a^2-ab+b^2\right)$

$\frac{8}{3}\left(x-3\right)$

$25x^2+80xy+64y^2$

$\int_{-\infty}^0\frac{1}{\left(x^2-1\right)}dx$

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

$\frac{x^3+x^2+2x}{x+2}$

$\csc\left(60\right)^2+\sec\left(60\right)^2-\cot\left(60\right)^2$