$\lim_{x\to0}\left(\frac{ln\left(e^x-1\right)}{ln\left(sin\left(x\right)\right)}\right)$

$\lim_{x\to-1}\left(\frac{x^4+2x^3+x^2}{x-1}\right)$

$\left(6m\:+\:4\right)\:\left(6m\:-\:12\right)$

$\:45.27-1.27$

$9x^2\left(y-5\right)^2+6x\left(y-5\right)^2+4\left(y-5\right)^2$

$2\pi\cdot\frac{8}{16}$

$\left[\left(x-y\right)\left(x-w\right)\right]^2$