$x\frac{dy}{dx}+2y=7x^2-8x$

$0\cdot\left(-17\right)$

$cosx=-sin^{\left(2\right)}x-1$

$\frac{\left(18x^5y^4z^3\right)}{\left(10x^3yz^3\right)}$

$\frac{dy}{dx}\left(-\frac{3x}{4y}\right)$

$\left(x+13\right)\left(x+3\right)$

$6\sin\left(\frac{\pi}{10}\right)\cos\left(\frac{\pi}{10}\right)$