$\frac{3x^3-x^2+x+4}{x-3}$

$mx2\:+\:\left(2m\:-\:6\right)\:x\:+\:\left(m\:-\:5\right)\:=\:0$

$\cos\left(b-330\right)=\cos\left(b\right)\cos\left(330\right)+\sin\left(b\right)\sin\left(330\right)$

$\int\frac{7x+3}{\left(x-2\right)\left(x-9\right)}dx$

$x^2+13x+0$

$\frac{\cos^2\left(x\right)-sin^2x}{\sin^4\left(x\right)-\cos^4\left(x\right)}$

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