SOLUTION: I just want to check if it is right expand each notation and find its value 1) 5^3 = 5*5*5 and value 125 2) 20^2 = 20*20 and 400 Evaluate the following square root

Algebra ->  Exponents -> SOLUTION: I just want to check if it is right expand each notation and find its value 1) 5^3 = 5*5*5 and value 125 2) 20^2 = 20*20 and 400 Evaluate the following square root      Log On


   

Question 895798: I just want to check if it is right

expand each notation and find its value
1) 5^3 = 5*5*5 and value 125
2) 20^2 = 20*20 and 400
Evaluate the following square roots
3) square root of 16 = 4
4)square root of 81 = 9


Answer by thesvw(77) About Me  (Show Source):
You can put this solution on YOUR website!
4%5E2+=+16
4+=+16%5E%281%2F2%29
LETS GET sqrt%2816%29 and solve it.
sqrt%2816%29+=+16%5E%281%2F2%29
4%5E2+=+16
sqrt%2816%29+=+sqrt%284%5E2%29
16%5E%281%2F2%29+=+4%5E%282%2A%281%2F2%29%29%0D%0A%0D%0A%7B%7B%7B16%5E%281%2F2%29+=+4 And the other one comes same..