Answer:
[tex]\sqrt[4]{7^3}=7^{\frac{3}{4}}[/tex]Step by step explanation:
To convert a radical in exponential form, the power inside the radical converts in the numerator of the exponential.
And the root converts in the denominator.
Then, in exponential form would be:
[tex]\sqrt[4]{7^3}=7^{\frac{3}{4}}[/tex]