$\left(-4b^5c^{-2}\right)^2$

$-\:4\:-\:\left(+\:24\right)\::\:\left(\:+1\:-\:9\:\right)\:-\:\left(-1\:-2\:\right)$

$8x-3y+x-4-12y-10x+18y-y+7-x$

$\frac{1}{\sin^{2}x}+\frac{\sec^{2}x}{\tan^{2}x}$

$\int e^{6x+6}dx$

$\int e^x\left(3+e^x\right)^4dx$

$\int\left(\tan^2\left(3x\right)\sec^2\left(3x\right)\right)dx$