$\int\left(2x^3-3x\right).\left(6x^2\right)dx$

$12x^3+18x^2-10x$

$\frac{d}{dx}\:9\cos x+7\sin x-12ln\left(x\right)+4e^x$

$40,131\left(8\right)$

$\left(6mn^4+3mn^5\right)^2$

$\left(3x^{2}+2xy^{2}-2x\right)dx+\left(3y^{2}+2x^{2}y-2y\right)dy=0$

$\pi\lim_{x\to0}\left(3\right)e$