Simplify the root.
${}^4\sqrt{-625}$

Determine if the given square root evaluates to a real number.

$\sqrt{-64}$

Determine if the given square root evaluates to a real number.

$-\sqrt{-25}$

Simplify the root.

${}^4\sqrt{256}$

Simplify the root.

${-}^4\sqrt{10,000}$

Simplify the root.

${}^5\sqrt{243}$

Simplify the root.

${}^3\sqrt{-125}$

Simplify the root.

${-}^5\sqrt{1024}$

Estimate the square root between two consecutive whole numbers.

$\sqrt{138}$