$x^{2-49}$

$\frac{d}{dx}\frac{2}{3}x^{\frac{3}{2}}-2x^{\frac{1}{2}}$

$\left(\frac{b^{\frac{5}{2}}}{\sqrt{b}}\right)-\left(4b^4\right)^{\frac{1}{2}}$

$\int e^{9t}\cdot\cos\left(8t\right)dt$

$1.5x=0$

$\lim_{x\to5}\left(\frac{4x^2+100}{x-5}\right)$