$\frac{d}{dx}\left(tan\left(x+y\right)=xe^y\right)$

$\left(-3\right)^6\cdot\left(-3\right)^2$

$y'=y-e^x$

$\left(2x-\sqrt{3}\right)^2\:$

$x\left(x^3+3x-8\right)+5+4x^3$

$\left(8\right).\left(5\right).\left(2\right).\left(-9\right).\left(-4\right)$

$19^2y^2+57x^{\text{4}}y$