Respuesta :

Answer:

  see below

Step-by-step explanation:

You know that the denominator of a fractional exponent is the same as a root index, so ...

  [tex]x^{\frac{a}{b}}=\sqrt[b]{x^a}\\\\\boxed{x^{\frac{2}{7}}=\sqrt[7]{x^2}}[/tex]

Ver imagen sqdancefan