$\frac{dy}{dx}\left(x^22y^3\right)=0$

$-2,290+369,290$

$\sec^4\left(x\right)=\tan^2\left(x\right)\sec^2\left(x\right)+\sec^2\left(x\right)$

$\left(\frac{5}{3}+m^{2r}\right)\left(\frac{3}{5}-m^{2r}\right)$

$9x^2\:\:-\:36xy\:+\:36y^2$

$\left(\left(x^5\cdot y^6\right)\right)^4$

$x^2+30x+25$