$\frac{dy}{dx}=24-6x-4y+xy$

$\left(3a^3b^4\right)^3$

$1-\tan\left(x\right)^2=\left(\cos\left(x\right)^4-\sin\left(x\right)^4\right)\frac{1}{\cos\left(x\right)^2}$

$-10n-\left(-15\right)=25$

$\frac{d^{20}}{dx^{20}}\left(x^2\ln\left(x^2\right)\right)$

$\left(m-n\right)\left(r+s\right)$

$\frac{dy}{dx}=\frac{1}{x}+\sqrt{x}$