Simplify the Radical Expression ( square root of 5)^2

${(\sqrt{5})}^{2}$

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{5}$ as $5^{\frac{1}{2}}$ .

${(5^{\frac{1}{2}})}^{2}$

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$5^{\frac{1}{2} \cdot 2}$

Combine $\frac{1}{2}$ and $2$ .

$5^{\frac{2}{2}}$

Cancel the common factor of $2$ .

Cancel the common factor.

$5^{\frac{2}{2}}$

Rewrite the expression.

$5^{1}$

Evaluate the exponent.

$5$