$\frac{\left(k+1\right)\left(k+1\right)\left(k+2\right)}{\left(k-2\right)\left(k+1\right)\left(k-1\right)}$

$8\infty$

$26-4x>2$

$\int_{-\frac{1}{2}}^{\frac{3}{2}}\left(x-\cos\left(\pi x\right)\right)dx$

$\int\frac{5x+8}{x^2-5x+6}dx$

$\left(\frac{x}{8}-3\right)\left(x+2\right)$

$\frac{b^{-2}}{b^4}$