Question 214160
 should write this problem in exponential for and simplify.... I know how that works (usually) I just dont get how to do it with this problem;
cubed root of "a" times the fith root of "a"..... 
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= {{{a^(1/3)*a^(1/5)}}}
Add exponents when multiplying.
= {{{a^(1/3 + 1/5)}}}
= {{{a^(8/15)}}}
The exponent is 8/15, in case it's obscured.