That appears to be the square root and the cube root...so what you really have is:
(2^(1/2))*(2^(1/3))
Now the rule for multiplication of similar bases with different exponents is:
a^b*a^c=a^(b+c), so in this case:
2^(1/2)*2^(1/3) is equal to
2^(1/2+1/3) which is equal to
2^(5/6)
