$\left(h+5\right)\left(h-7\right)$

$\lim_{x\to\infty}\frac{x^2}{\left(x-5\right)\left(3-x\right)}$

$\frac{x^5+2x^2}{x+1}$

$\int\frac{17}{xln\left(x\right)}dx$

$\frac{\sin\left(x\right)\cos\left(x\right)+\cos\left(x\right)}{\sin\left(x\right)}$

$\int\left(\frac{4x+7}{\left(3x+2\right)\left(x-5\right)}\right)dx$

$\frac{d}{dr}\sqrt{b^2-r^2}+b$