SOLUTION: Solve: Square Root of (x+3) = 2x only (x+3) is under the Square Root Thank you for your help!

Question 632856: Solve:
Square Root of (x+3) = 2x
only (x+3) is under the Square Root
Thank you for your help!
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Solve:
Square Root of (x+3) = 2x
only (x+3) is under the Square Root
Thank you for your help!

------ Squaring both sides

(4x + 3)(x - 1) = 0
4x + 3 = 0 or x - 1 = 0

4x = - 3 or x = 0 + 1

or

However, substituting gives us an EXTRANEOUS solution, so the only solution is

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