SOLUTION: Solve: X= sqr rt x-1 + 3

Question 201519: Solve: X= sqr rt x-1 + 3
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve for x:
First, subtract 3 from both sides of the equation.
Next, square both sides. Note that you may introduce an extraneous root when you square both sides so you must check your solutions to confirm their validity.
Simplify the left side.
Subtract x from both sides.
Now add 1 to both sides.
Solve this quadratic equation by factoring.
Apply the zero product rule.
or so that...
or
Check the solutions:
Substitute x = 2.

Note that or
or
or ...and for the other solution...
Substitute x = 5

or
or

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