SOLUTION: Would someone please tell me if this is correct?! Thank You! 9x^2-4y^2 Is this Prime Factorized???

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Question 24598: Would someone please tell me if this is correct?! Thank You!
9x^2-4y^2
Is this Prime Factorized???
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
No, it isn't!
Factor:
9x%5E2+-+4y%5E2 Notice that this the difference of two squares and it can be factored.
9x%5E2+-+4y%5E2+=+%283x+-+2y%29%283x+%2B+2y%29