$\int_1^e\frac{3lnx^3}{x^2}\:dx$

$12^{-4}\cdot12^4$

$\frac{dy}{dx}=2y+1\:;y\left(0\right)=3$

$\lim_{x\to0}\left(\left(e^x+x\right)^{\frac{x}{1}}\right)$

$\left(\frac{9}{\left(3x+2\right)^2}\right)=3\left(-\frac{3}{3x+2}\right)^2$

$6\left(2r+-9\right)$

$\left(x^2+8\right)\left(x^2-3\right)$