$3\:-\:\left(5\:+\:7\:-\:10\:-\:9\right)$

$y\ln\left(x\right)\frac{dy}{dx}=\frac{\left(y+3\right)^2}{x}$

$\int\frac{5x^2-2}{x^3+2x}dx$

$\frac{dy}{dx}\left(xy^4\right)$

$f\left(x\right)=\left(x^4-2x^3\right)^3$

$\left(4x+3y-8z\right)+\left(7x-8y+5z\right)$

$\left(\frac{-2x^{3}y^{2}}{3x^{3}y^{-2}}\right)^{3}$