$^{-2}y\left(y\right)^2$

$\lim_{x\to\infty}\left(\frac{x^4}{e^{2x}}\right)$

$\lim_{x\to0}\left(x-\sin\left(x\right)\right)\cdot\ln\left(x\right)$

$\int\left(4x^2\sqrt{x^3-5}\right)dx$

$4x^2+9y^2=72$

$\int8x\cdot ln\left(ax\right)dx$

$\int_{-\infty}^3\left(e^x\right)dx$