SOLUTION: I am looking for help on my algebra problem. Completly factor the following expression and show all work: 49y^2-81z^2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I am looking for help on my algebra problem. Completly factor the following expression and show all work: 49y^2-81z^2      Log On


   

Question 407814: I am looking for help on my algebra problem.
Completly factor the following expression and show all work: 49y^2-81z^2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
factor the following expression and show all work:
49y^2-81z^2
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It's a "difference of squares".
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Factors are (7y-9z)(7y+9z)
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Cheers,
Stan H.