$\frac{u^2-27}{u-3}$

$\frac{y^2}{y+1}$

$\left(8.\left(-24\right)\right)+\left(8.7\right)$

$\frac{j^{-3}p^3}{j^8p^{-7}}$

$\lim_{x\to0}\left(\sqrt{x^2+x}sin\left(\frac{\pi}{x}\right)\right)$

$-30-5\cdot\left(-1\right)\cdot\left(15-3\cdot6\right)+9-3\cdot4$

$4k^2-36kp+36p^2$