Rewrite the radical expression using rational exponents. A ssume all variables represent nonnegative real numbers.
-$\left(\sqrt[9]{5 x^{4} y}\right)^{7}$
A) $\left(5 x^{4} y\right)^{7 / 9}$
B) $(5 x y)^{19}$
C) $\left(5 x^{4} y\right)^{9 / 7}$
D) $\left(5 x^{4} y\right)^{2}$

Question

Quizplus · Accepted Answer

The expression $\left(\sqrt[9]{5 x^{4} y}\right)^{7}$ can be rewritten using rational exponents as $\left(5 x^{4} y\right)^{\frac{7}{9}}$, because the 9th root of something raised to the 7th power is equivalent to raising that something to the power of $\frac{7}{9}$.

Rewrite the Radical Expression Using Rational Exponents (5x4y9)7\left(\sqrt[9]{5 x^{4} y}\right)^{7}(95x4y​)7 A) (5x4y)7/9\left(5 x^{4} y\right)^{7 / 9}(5x4y)7/9

Rewrite the Radical Expression Using Rational Exponents $\left(\sqrt[9]{5 x^{4} y}\right)^{7}$ A) $\left(5 x^{4} y\right)^{7 / 9}$