$\left(m+n\right)^2+3\left(m+n\right)-108$

$3\left(3\right)-7$

$-11.034-8.848$

$\frac{dy}{dx}=\frac{y\left(\ln\left(y\right)-\ln\left(x\right)-1\right)}{x}$

$9y-4y+2y$

$\lim_{x\to3}\left(\frac{1}{3}x^2-4x+10\right)$

$2\cos^2\left(x\right)=\sqrt{3}\cos\left(x\right)$