Answer:
the second one, [tex]\sqrt[7]{81}[/tex] is right
Step-by-step explanation:
when you see something like this, you can take the denominator of the fraction and put it outside the root, so it becomes a seventh root, and the number inside the root is then raised to the power of to numerator of the fraction. 3^4 = 81
sorry if i explained that bad :)
