SOLUTION: (((Square root of (x+2)))=x I don't know where to start! Thanks for the help! :)

Question 697143: (((Square root of (x+2)))=x
I don't know where to start! Thanks for the help! :)
Found 2 solutions by Stitch, god2012:
Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
Given
I would start by squaring both sides of teh equation to remove the radical sign.

Now subtract X from both sides

Subtract 2 from both sides

Now you can use the quadratic equation.

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=9 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 2, -1. Here's your graph:

Answer by god2012(113) (Show Source): You can put this solution on YOUR website!
Given :
= x
Solution :
Taking square on both sides, we get

x=2 or x=-1
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