Q:

\frac{\sqrt{2^{5}}}{\sqrt[3]{2}} Divide these numbers using fractional exponents.

Accepted Solution

A:
[tex]\bf a^{\frac{ n}{ m}} \implies \sqrt[ m]{a^ n} \qquad \qquad \sqrt[ m]{a^ n}\implies a^{\frac{ n}{ m}} \\\\\\ \textit{also recall that }~~~~~~~~~~~~\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} \qquad \qquad \cfrac{1}{a^n}\implies a^{-n} \qquad \qquad a^n\implies \cfrac{1}{a^{-n}}\\\\ -------------------------------[/tex]

[tex]\bf \cfrac{\sqrt{2^{5}}}{\sqrt[3]{2}}\implies \cfrac{\sqrt[2]{2^{5}}}{\sqrt[3]{2^1}}\implies \cfrac{2^{\frac{5}{2}}}{2^{\frac{1}{3}}}\implies 2^{\frac{5}{2}}\cdot 2^{-\frac{1}{3}}\implies 2^{\frac{5}{2}-\frac{1}{3}} \implies 2^{\frac{15-2}{6}} \\\\\\ 2^{\frac{13}{6}}\implies \sqrt[6]{2^{13}}\implies \sqrt[6]{2^{12+1}}\implies \sqrt[6]{(2^2)^{6+1}}\implies \sqrt[6]{(2^2)^6\cdot 2} \\\\\\ 2^2\sqrt[6]{2}\implies 4\sqrt[6]{2}[/tex]