$12x^8y^2-24x^7y^5$

$\frac{\sin\left(b\right)+\cos\left(b\right)\sin\left(b\right)^2}{\sin\left(b\right)^3}=\frac{1}{1-\cos b}$

$z^2+4z+4$

$4\left(3x^3y^5-5x^5y^2z\right)$

$\left|\left(+6\right)-\left(-8\right)\right|-\left|\left(-4-\left(-10\right)\right)\right|$

$8\:+\:-67$

$\int\frac{1}{\left(x^2+4x+5\right)}dx$