$-3x\:>\:6$

$\int7sin^2\left(x\right)cos^4\left(x\right)dx$

$\left(\frac{-9}{\left(x+1\right)^4}\right)+\left(\frac{4}{x+1}\right)$

$2\sin^2\left(x\right)-\sin\left(x\right)+3$

$\int\:4\:ln\:9x\:dx$

$\frac{tan\left(x\right)\csc^2\left(x\right)}{1+secx}$

$\left(l-8\right)\left(l-9\right)$