$\left(x+y\right)\frac{dy}{dx}=2y$

$\frac{d}{dx}\left(x^{\frac{2}{3}}\left(x^2-9\right)\right)$

$\lim_{x\to0}\left(\frac{\sin\left(x\right)^{10}}{x}\right)$

$\int\left(\frac{x^2}{2}\cdot\frac{1}{2\sqrt{x+1}}\right)$

$\cos\left(x\right)\left(3\cos\left(x\right)-3\right)=0$

$-81+9a^{10}$

$a^6+2a^3+1$