SOLUTION: Factor completly 81x^2 - 441y^2
I was able to break down the first part but had problems breaking down the 441y^2
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I was able to break down the first part but had problems breaking down the 441y^2
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Question 309793: Factor completly 81x^2 - 441y^2
I was able to break down the first part but had problems breaking down the 441y^2 Found 2 solutions by stanbon, palanisamy:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Factor completly 81x^2 - 441y^2
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441 is 21^2
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(9x-21y)(9x+21y)
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Cheers,
Stan H.
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