$\left(\frac{2}{3}x^2-\frac{1}{5}x\right)\left(\frac{3}{2}x^2-4x\right)$

$\frac{3}{x^3+x-2}$

$\int x^{\frac{1}{2}}\left(\frac{5}{54}x^{\frac{3}{2}}+25\right)^{\frac{1}{2}}dx$

$\left(\frac{2^8}{2^4}\right)^3$

$\frac{d^2}{dx^2}x^3\left(\frac{x+1}{x-1}\right)^4$

$0.2819740503-\left(\frac{-0.99999682249\left(1.3-0.2819740503\right)}{12.78584918+0.99999682249}\right)$

$\left(\frac{1}{\sqrt{1+4x}}\right)^4$