$5\:x\:7\:-\:\frac{4^2}{2}$

$\int\frac{y}{\left(y-3\right)\left(2y+1\right)}dy$

$\frac{6x^4+23x^2+4x+15}{x^2+3}$

$\left(3b+\frac{1}{3}\right)^2$

$\left(\cos\left(b\right)+\cos\left(2a\right)\right)\sin\left(b\right)$

$16x^2x+16x+4$

$ln\left|y\right|+c=-\frac{1}{2}\ln\:\left|x^2-9\right|+c$