$\frac{500}{\left(1+0.1\right)^2}$

$\lim_{x\to0}\left(\frac{\arcsin\left(\frac{x}{\sqrt{1-x^2}}\right)}{\ln\left(1-x\right)}\right)$

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

$\left(a-b\right)\left(2a+3b-c\right)$

$\frac{1}{2}x^4-3x^2$

$2x^2+y^2=8$

$\int\frac{\sec^2\left(x\right)}{2\tan\left(x\right)+1}dx$