When \(\left(81x^{\frac27}\right)\left(\frac29x^{\frac37}\right)\) is simplified, it can be written in the form ax^b where a and b are real numbers. Find ab.
We have
81 * (2/9) * x^(2/7) * x^(3/7) =
18x^(5/7)
ab = 18 ( 5/7) = 90 / 7
