$\cot\left(x\right)\cdot\sec\left(x\right)\cdot\sin\left(x\right)=\sin\left(x\right)$

$\left(5m^2+m^3\right)^2$

$2y-27=y+18$

$x^2\frac{dy}{dx}\left(1-x^2+y^2-x^2y^2\right)$

$23\ge w-9$

$\frac{-3+3x}{3x-12+6y}$

$4\left(0\right)-2\left(5\right)\left(-3\right)+5\left(5\right)\left(-1\right)^3$