$\left(8x^{\frac{9}{4}}-36x^{\frac{5}{4}}+54x^{\frac{1}{4}}+27\right)\left(x^{\frac{3}{4}}\right)$

$\int_{-2}^{-1}\left(\frac{xe^x+1}{x}\right)dx$

$2x^2-2x-12=0$

$\frac{\sqrt{x-6}\sqrt{x+6}}{x^{2}-36^{2}}$

$\:\left(a+\frac{b}{2}\right)^2$

$7x=-14$