$\int\left(1+2x\right)e^{3e}dx$

$\frac{80.01}{-12.7}$

$\frac{3\tan\left(x\right)-\tan^3\left(x\right)}{1-3\tan^2\left(x\right)}$

$\lim_{x\to0}\left(\frac{\left(e^{6x}-6sinx-cos6x\right)}{x^2}\right)\:$

$\left(1.5x^2-0.3y^2\right)\left(1.5x^2+0.3y^2\right)$

$\left(15^4\right)^{-2}$

$5x\left(x^6-25x^3\right)$