SOLUTION: I am really needing help with this algebra problem, please help? Use the "difference of squares" rule to factor the following expression: 9x^4-25y^2

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Question 407812: I am really needing help with this algebra problem, please help?
Use the "difference of squares" rule to factor the following expression:
9x^4-25y^2

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
factor the following expression:
9x^4-25y^2
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(3x^2-5y)(3x^2+5y)
----------------
Cheers,
Stan H.

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