$\left(3+2c\right)^2$

$5x^2\:+\:39x\:+\:54$

$\frac{6\left(-1\right)}{1}-1+\left(-1\right)$

$\frac{1+\sin\left(x\right)}{1-\sin\left(x\right)}=2\sec^2\left(x\right)+2\sec\left(x\right)\tan\:\left(x\right)-1$

$\frac{x^2}{9x^5}$

$108+200+9-42$

$\frac{sec^4\left(\theta\right)}{cot^3\left(\theta\right)csc^5\left(\theta\right)}$