Question 32985
a)sqrt x-2=1
sqrt x = 1+2 = 3
sqrt x = 3
square both sides
x = 9

b)sqrt x^3=27 
(x)^3/2 = (3)^3
sqrt(x) = 3 (cancelling cube roots on both sides)
square both sides 
x = 9

c)cube to the sqrt x^2=9 
sqrt x^2 = (9)^1/3
x = (9)^1/3