$-\frac{2}{3}\left(24-18\right)-\:\frac{1}{2}\left(524-48\right)$

$\frac{2}{y+2}+\frac{3}{y}=\frac{y}{y+2}$

$-7\left[-5j-4a-\left(a-5j\right)\right]$

$p^2+\:\frac{7}{2}p$

$20x^4+5n^5$

$\int\left(\frac{\left(6x+1\right)}{\left(x+1\right)\left(x-2\right)}\right)dx$

$\left(x-50\right)\left(a-20\right)$