$\int\left(7x^2+8\right)^3xdx$

$x\cdot\tan\left(47\right)=\left(x+389\right)\tan\left(17\right)$

$x^2\cdot y'-4\cdot x\cdot y=10$

$7b-\left\{6\left[-4\left(3b-7\right)-\left(9b+10\right)\right]+11\right\}$

$\int x\left(0.2x+5\right)^2dx$

$\lim_{x\to0}\left(\frac{x^{-\frac{4}{3}}}{sin\left(\frac{1}{x}\right)}\right)$

$cos\left(\sin^{-1}\left(\frac{1}{\sqrt{3}}\right)+60\right)$