Question

square root of 81a^10b^6

Answer 1

Recall that the square root of a variable is equal to halving the exponent. So, the square root of a^10 is a^(10/2) = a^5
The square root of b^6 is b^(6/2)=b^3
The square root of 81 is 9. So our answer is
\[9a^5 b^3\]