We must simplify the following expression:
[tex]\frac{20}{\sqrt[]{5}}\text{.}[/tex]
To simplify the expression, we can write:
[tex]1=\frac{\sqrt[]{5}}{\sqrt[]{5}}\text{.}[/tex]
Multiplying by 1 the expression above and using the last expression, we have:
[tex]\frac{20}{\sqrt[]{5}}\cdot1=\frac{20}{\sqrt[]{5}}\cdot(\frac{\sqrt[]{5}}{\sqrt[]{5}})=\frac{20\cdot\sqrt[]{5}}{(\sqrt[]{5})^2}=\frac{20\cdot\sqrt[]{5}}{5}=\frac{(4\cdot5)\cdot\sqrt[]{5}}{5}=4\cdot\sqrt[]{5}\text{.}[/tex]
Answer
We can simplify the expression using:
B. √5 / √5
