SOLUTION: 2 times the square root of x+4 minus 1 =x

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Question 635366: 2 times the square root of x+4 minus 1 =x
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

The idea is... to isolate the radical term on one side of the EQ 

and then square both sides of the EQuation

2sqrt%28x%2B4%29+=+x%2B1

   4(x+4) = x^2 + 2x + 1

   4x + 4 = x^2 + 2x + 1

    x^2 - 2x -3 = 0

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

    x = 3  0r  x = -1