SOLUTION: solve. sqrt x-1=x-3

Question 120471: solve. sqrt x-1=x-3
Answer by nabla(475) (Show Source): You can put this solution on YOUR website!

(Square both sides)
(Expand binomial)
(subtract (x-1) from both sides)
(factor right side)
giving the following two equations
or
which implies or ,
but gives when substituted into the original equation, thus we exclude this solution, leaving as the solution to this problem.
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