$-x^2\:+x^4+x\:\:\:\:-4x^2\:+x^3+9\:\:\:\:\:10x^2\:-7x^4-2x+7$

$y'\:=\:-3y+8+4e^{-4s}$

$-2x^2+4x-2\le0$

$3\left(4k+20k^2+25k^3\right)$

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

$1+\tan x+\sec x$

$\int_0^{\infty}\left(\frac{4x}{\left(x^2+1\right)^{\frac{1}{3}}}\right)dx$