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

$-23\left(6-4\right)$

$\frac{6x\:3\:+11x\:2\:+24x+7}{3x+1}$

$\left(3\sqrt{2}-3\sqrt{2}\right)$

$\left(2a^2-4a^3\right)^3$

$x^2\left(x+1\right)+2\left(x+1\right)$

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