Use the properties of exponents to generate an equivalent expression for ^3square root 8 over square root 2

1 answer

To simplify the expression \(\frac{\sqrt[3]{8}}{\sqrt{2}}\), we can use properties of exponents.

  1. First, rewrite the roots in exponential form: \[ \sqrt[3]{8} = 8^{1/3} \quad \text{and} \quad \sqrt{2} = 2^{1/2} \]

  2. Next, express \(8\) as a power of \(2\): \[ 8 = 2^3 \] Thus, \[ \sqrt[3]{8} = (2^3)^{1/3} = 2^{3 \cdot \frac{1}{3}} = 2^1 = 2 \]

  3. Now substitute \(2\) back into the original expression: \[ \frac{\sqrt[3]{8}}{\sqrt{2}} = \frac{2}{2^{1/2}} \]

  4. Using the properties of exponents: \[ \frac{2}{2^{1/2}} = 2^{1 - \frac{1}{2}} = 2^{\frac{1}{2}} \]

  5. Finally, rewrite \(2^{1/2}\) in radical form: \[ 2^{\frac{1}{2}} = \sqrt{2} \]

Putting it all together, the equivalent expression for \(\frac{\sqrt[3]{8}}{\sqrt{2}}\) is: \[ \sqrt{2} \]