The best would be to use a scientific calculator, one that can calculate any root. You can also raise the number 15625 to the power (1/6) - this is the same as taking the 6th. root. Or, you can try raising several numbers to the 6th. power, until you find one that is close enough.
The sixth root of 15625, or 15625 ^ (1/6) is equal to 5.
15625 try it using a calculator
The cube root of the square root is the sixth root. The sixth root of 729 = 3
sixth root of 27 = 1.73205081 according to google.
The "sixth square root" is an ambiguous term. The "sixth root" of 126 ... the number which when multiplied by itself 6 times becomes 126 ... is 2.23904 (rounded)
The sixth root of 15625, or 15625 ^ (1/6) is equal to 5.
x^6=15625 x=(15625)^(1/6)
15625
15625
The square root of 15625 is ±125 because 125 X 125= 15625.
15625 try it using a calculator
25
25
The cube root of the square root is the sixth root. The sixth root of 729 = 3
sixth root of 27 = 1.73205081 according to google.
If by "cube of 15625," you mean 156253, then you would multiply 15625*15625*15625. If you have to do this by hand, then first multiply 15625*15625, and then multiply the product of that by 15625 again. Follow the multi-digit multiplication rules, look it up if you don't know them.
1) 125 is the square root of 15625. 2) √125 = √(25 x 5) = √(52x 5) = 5√5