SOLUTION: solve the equation y^2-6y+9=0

Question 621376: solve the equation y^2-6y+9=0
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
Sometimes the easiest way to solve a quadratic equation is by factoring, and this is a great example of that.
should be recognized as the square of a binomial, because
is the square of ,
is the square of and of ,
and is double the product of and .
So, and then
---> ---> --->
Not all quadratic equations can be solved by factoring, but when it is possible, it is easier than dealing with the dreaded quadratic formula.
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