SOLUTION: 1) Solve the following equations. a) sqrt x -2=1 Answer: Show work in this space. b) sqrt x³ =27 Answer: Show work in this space. c) 3sqrt x

Algebra ->  Functions -> SOLUTION: 1) Solve the following equations. a) sqrt x -2=1 Answer: Show work in this space. b) sqrt x³ =27 Answer: Show work in this space. c) 3sqrt x      Log On


   

Question 56864: 1) Solve the following equations.
a) sqrt x -2=1
Answer:
Show work in this space.



b) sqrt x³ =27
Answer:
Show work in this space.



c) 3sqrt x2 =9
Answer:
Show work in this space.
thank you
Answer by Scriptor(36) About Me  (Show Source):
You can put this solution on YOUR website!
a) sqrt%28x-2%29=1
Now multiply at both sides to obtain:
%28sqrt%28x-2%29%29%5E2=1%5E2
This means that x-2 = 1, so x = 3

b) The only x that satisfies is x=3, try it!
c)9=3%2Asqrt%28x%5E2%29=3%2Ax
So 3*x = 9 => x=3