$x^3+7x^2+12x+4$

$1=\csc^2\left(x\right)-\frac{\csc^2\left(x\right)}{\sec^2\left(x\right)}$

$\int_2^{-1}\frac{1}{x^2+4x+8}dx$

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

$y=\ln\left(\ln\left(tanx^2\right)\right)$

$\frac{1}{3}\log\left(x\right)-\log\left(5\right)$