SOLUTION: 1) I need help in solving the following equations. a)sqrt x-2=1 b)sqrt x^3=27 c)cube to the sqrt x^2=9

Algebra ->  Exponents -> SOLUTION: 1) I need help in solving the following equations. a)sqrt x-2=1 b)sqrt x^3=27 c)cube to the sqrt x^2=9       Log On


   

Question 32985This question is from textbook College Algebra
: 1) I need help in solving the following equations.
a)sqrt x-2=1



b)sqrt x^3=27



c)cube to the sqrt x^2=9



This question is from textbook College Algebra

Answer by sarah_adam(201) About Me  (Show Source):
You can put this solution on YOUR website!
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