Question

(7a)^(5/8) b^(3/8). Show work. Express using a radical.

Answer 1

ummm, did you read the notes in the link I gave you earlier...? :/

Answer 2

yes, and i did not quite understand them.

Answer 3

ok so in a general case,

\(\huge \sqrt[n]{a^x}=a^\frac{x}{n}\)

can you use this as a model to answer your questions...?


\(\huge (7a)^\frac{5}{8}\cdot (b)^\frac{3}{8}= ?\)

Answer 4

yes i can, but how do you know what number is x, n, and a. I don't know the substitution for the problem.

Answer 5

a = base
x= exponent of base, or numerator of rational exponent.
n= index, or the denominator of the rational exponent. :)

Answer 6

in this case,

a= 7a and b
x=5 and 3
n=8 and 8