$\frac{dy}{dx}\left(0=\tan\left(xy\right)+\sin\left(xy\right)\right)$

$\frac{\left(21\times81\right)^{3}}{343}$

$\frac{dy}{dt}\left(\left(1-cos\left(y\right)\right)\right)+t=0$

$\sqrt{64\cdotr^{2}p^{2}q^{2}}$

$5y+7+x-5+4x+3x$

$\left(10x^4-3x^2+15\right)+\left(2x+3\right)$

$\left(12x^2-10xy+2y^3+4\right)dx+\left(6xy^2-5x^2\:\right)dy=0$