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

$3x^2+18x-12=0$

$\int\left(\frac{-3}{x+2}\right)dx$

$\frac{1}{2}2730\cdot25.27^2$

$\left(-6x^3y^4\right)\left(3x^2y^5\right)$

$\sqrt[3]{-125}+6^2+5\cdot\left|\left(-2\right)^3\cdot4^0\right|^1$

$\cos^2\left(x\right)+1=\frac{1}{\sin^2\left(x\right)}$