Question 169706
Simlify each expression 
2 square 6ab multiplied by 3 square 15ab^3 
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Do you mean square root and cube root?
{{{((6ab)^(1/2))*(15ab^3)^(1/3)}}}
If that's what you meant:
Make the exponents equal, 1/6.
={{{((216a^3b^3)^(1/6))*(225a^2b^6)^(1/6)}}}
Since the exponents are the same, you can multiply
={{{(216a^3b*225a^2b^6)^(1/6)}}}

={{{(216*225a^5b^7)^(1/6)}}}

={{{b*(48600a^5b)^(1/6)}}}

"Simplified" can be a matter of opinion.