$\int\left(\frac{\left(9x\left(6x^2+1\right)^2\right)}{2}\right)dx$

$65\:-\:\left(-30\right)\:+\:\left(-45\right)\:-\:\left(-5\right)\:+\:40\:-\:10$

$-3^2\:-\:6^2$

$\int\frac{4x+10}{\left(x+2\right)\left(x-1\right)^2}dx$

$\frac{t^2-2t-3}{t^2-t-2}$

$\left(x+1\right)-36y\left(x+1\right)-36y$

$\int\left(\frac{x^2-8x+7}{\left(x^2-3x-10\right)^2}\right)dx$