$x^3+x^2+2x$

$\frac{dy}{dx}=\frac{\left(y\right)^{\frac{1}{2}}}{e^{2x}}$

$\lim_{x\to0}\left(\frac{4x^2-7x}{\left(ln\left(x\right)\right)^2}\right)$

$4\left(n+9\right)-3\left(2+n\right)$

$40^{4}+8a^{2}b^{2}+9b^{4}$

$\left|-352\:+\:239\right|$

$\lim_{x\to\infty}\:\frac{dx}{xln\left(x\right)}$