Question 272222
63.5 + 61 = 124.5
124.53/2 = 1389.16
124.52 will be 124.5x 124.5 but in this instance instead of the power of 2 it is the power of 3/2 a fraction which is in fact 1 1/2 (1.5).
:
124.5^(3/2); the exponent is {{{3/2)}}} 
What this means is you cube 124.5 which is 124.5^3 = 129781.125,
and then you find the the square root of that, {{{sqrt(129781.125)}}} = 1389.16
:
But you can also write the square root as an exponent ^(1/2) also means square 
root. If you cube a number then find the square root, the exponent would be ^(3/2)
just like you had.
:
you can do this easily on a good calc. Enter; 124.5^(3/2); results will be 1389.165622
:
Hopefully this has cleared things up for you.  
Questions?  ankor@att.net is my email address,