SOLUTION: I need help factoring this polynomial. Thanks 9x^2 + 4 y^2= .

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Question 192455: I need help factoring this polynomial. Thanks
9x^2 + 4 y^2= .

Found 2 solutions by Alan3354, Earlsdon:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
I need help factoring this polynomial. Thanks
9x^2 + 4 y^2= .
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It's a sum of 2 squares, it's not factorable (without imagianary numbers).

Answer by Earlsdon(6294)   (Show Source): You can put this solution on YOUR website!
Factor:
This is not factorable into rational factors.
The only way that you can factor this is with irrational factors:
where
To see this, multiply the two factors given above using the FOIL method:

But so make this substitution...

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