SOLUTION: I need help solving Radical Equations, because i dont really understand it yet. one of my questions is square root of 5x (no longer under radical) minus 2 equals 3

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Question 141330: I need help solving Radical Equations, because i dont really understand it yet.
one of my questions is
square root of 5x (no longer under radical) minus 2 equals 3
Found 2 solutions by checkley77, Edwin McCravy:
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt(5x)-2=3
sqrt(5x)=3+2
sqrt(5x)=5 now square both sides.
5x=5^2
x=25/5
x=5 answer.
proof:
sqrt(5*5)-2=3
sqrt(25)=3+2
5=5

Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
I need help solving Radical Equations, because i dont really understand it yet.
one of my questions is
sqrt%285x%29-2=+3 

Isolate the radical on the left by adding 2 to both sides

          sqrt%285x%29-2%2B2=+3%2B2

          sqrt%285x%29=+5

Now square both sides of the equation:

          %28sqrt%285x%29%29%5E2=+%285%29%5E2

When you square a square root, you take away the radical:

          5x=+25

Divide both sides by 5:

          %285x%29%2F5=25%2F5

          x+=+5

But you MUST check square root equations because sometimes
an answer you get won't check in the original equation:

          sqrt%285x%29-2=+3

Substitute 5 for x

          sqrt%285%285%29%29-2=+3

          sqrt%2825%29-2=+3

          5-2=+3

          3=+3

So the solution x=5 checks.

Edwin