$g\left(x\right)=x^2\left(x^3+5x^2-3x\right)$

$-3y\:+\:3\:=\:-3y\:-\:6$

$\lim_{n\to\infty}\left(\frac{\left(n\right)^2\left(ln\left(n\right)\right)^2}{\left(n+1\right)^2\left(ln\left(n+1\right)\right)^2}\right)$

$\int e^{-x}\cdot\cos\left(2yx\right)dx$

$2x^2+4x+2=\left(2x+2\right)\left(x+1\right)$

$x^ay^b\cdot6x^2y$