Question

How do write 125^2/3 in radical form?
The choices are:
A.15, 625
B. 125
C.20
D.25

Answer 1

\(\Large \bf a^{\frac{{\color{blue} n}}{{\color{red} m}}} = \sqrt[{\color{red} m}]{a^{\color{blue} n}}\)

Answer 2

That looks like this:

Answer 3

\[125^{\frac{ 2 }{ 3 }}\]The denominator of the exponent is always the index, like @jdoe0001 showed you. Get it?

Answer 4

keep in mind that \(\bf 125\to 5\cdot 5\cdot 5\to 5^3\)

Answer 5

yes that helps thank you both

Answer 6

yw