Question 943590

How would I complete this factor 9y^2-6y+6. This is what I have so far, (3y+2)(3y+2).
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Those can't possibly be the factors since + 2 * + 2 = + 4, and not + 6. Futhermore, + 6y + 6y doesn't result in - 6y.
{{{9y^2 - 6y + 6}}}
{{{highlight_green(3(3y^2 - 2y + 2))}}} ------ Factoring out GCF, 3
This is as far as this goes, since {{{3y^2 - 2y + 2}}} is PRIME. 
If you wish though, you can obtain imaginary factors by either completing the square, or
using the quadratic equation formula.