$\csc^2\left(x\right)+\csc\left(x\right)-6=0$

$\left(d^2-9\right)\left(d^2-16\right)$

$\sin\left(x\right)\tan\left(x\right)+\sec\left(x\right)$

$\int arctan\left(\frac{1}{x}\right)dx$

$\left(1-5q\right)-\left(2.5s+8\right)$

$0.5\log\left(80\right)-0.5\log\left(20\right)$

$15x^2-7x+14$