SOLUTION: Find a value for k so that 9m^2-kn^2 will have the factors 3m + 7n and 3m -7n

SOLUTION: Find a value for k so that 9m^2-kn^2 will have the factors 3m + 7n and 3m -7n

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Question 116476: Find a value for k so that 9m^2-kn^2 will have the factors 3m + 7n and 3m -7n
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Take the product of the two given factors:

That would be

I guess that means that k has to be 49, right???

R^2 Retired
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