Simplify radical expression \sqrt{\frac{2}{3a}}-2\sqrt{\frac{2}{3a}}

Whether the given expression is true or false.
Given: ${\displaystyle a^{-\frac{m}{n}}=\frac{1}{a^{\frac{m}{n}}}}$

Use the rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers.
Find the real zeros of $f(x)=5x^3-x^2+5x-1$

Simplify ${\displaystyle 2x^{-2}}$

The simplified value of the expression $\frac{\sqrt[3]{5x^{5}y}}{\sqrt[3]{625x^2{y}^4}}$

left $f(x)=2^{\sin (x)}$
Find f'(x)

Rewrite the following exponential expressions as equivalent radical expressions. If the number is rational, write it without radicals or exponents.
${\displaystyle 2^{\frac{3}{2}}}$