Question 742961
we are given the following problem:

simplify and do not leave negitives. again these two questions are similar and i don't know the difference between solving them. 
a. (25x^2)^-(1/2) 
b.(25)^-(1/2)

note that x^-1/2 = sqrt(x)

a) (25^2)^-(1/2) = 1/sqrt(25^2) = 1/25
b) (25)^-(1/2) = 1/sqrt(25) = 1/5