SOLUTION: Solve the quadratic equation by completing the square. 4x^2-28x+49=5

Question 974267: Solve the quadratic equation by completing the square.
4x^2-28x+49=5
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
THE SOLUTION:

THE EXPLANATION:
If is to be part of a square ,
it may be that --> ,
and in that case, it must be that
-->-->-->-->--> ,
and we have ,
so to complete the square suggested by ,
and still have an equivalent equation,
we must add to both sides of the equal sign.
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