$\frac{25}{3}x^3y\:;\:x=3\:;\:y=2$

$8x^7y^3-3x^4y^4+6xy^2$

$9\left(-3\right)^2\:+\:12\left(-3\right)\:+\:6$

$120\cdot17$

$\frac{2}{3}x^2y^6z^{-3}\left(\frac{5}{2}x^5y^4z^{-7}\right)$

$\int\left(\frac{9}{xln8x}\right)dx$

$\frac{dy}{dx}\left(x^3\tan\left(x\right)-\sqrt{x}\right)$