$12\left(0\right)^2e^{-0^2}-6\left(0\right)^{-0^2}$

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

$\frac{x}{-2}-5\le\:-10$

$\ln\left(y\right)+c=\frac{x}{-2}+c$

$9x^2-6+1$

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

$\left(u^2+2w^4\right)^3$