$3+\frac{3}{n}$

$7\:+\:8\left(\:n\:-\:1\:\right)$

$\left(m^{a-1bx}+\frac{1}{2}y^3\right)\cdot\left(m^ab^{x-1}\right)$

$9+x=11$

$3\left(2x+1\right)<-4x$

$\int\left(\frac{x^3}{x^2-x-2}\right)dx$

$2\sin\left(\frac{\pi}{4}\right)\cos\left(\frac{\pi}{4}\right)\left(\sin^2\frac{\pi}{6}+\cos^2\left(\frac{\pi}{6}\right)\right)$