$8m x^3-27y x^6$

$0.75+2.25+1.50+0.25$

$2\left(2\right)^2+2\left(2\right)-4$

$x^3+x^2y^1$

$1=a\cdot\log_b\left(x\right)+c$

$\int_0^{\infty}k^2\left(e^{-2k\left(x+y\right)}\right)\left(x\cdot y\right)dx$

$\lim_{x\to\infty}\left(\frac{ln\left(6x+5\right)}{ln\left(4x+7\right)+1}\right)$