SOLUTION: Find a value for k so that 9m^2-kn^2 will have the factors 3m+7n and 3m-7n. I;m confused with the question. ANy help would be appreciated.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find a value for k so that 9m^2-kn^2 will have the factors 3m+7n and 3m-7n. I;m confused with the question. ANy help would be appreciated.      Log On


   

Question 101892: Find a value for k so that 9m^2-kn^2 will have the factors 3m+7n and 3m-7n.
I;m confused with the question. ANy help would be appreciated.
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
k=49
9m^2-49n^2=(3m+7n)(3m-7n)
Ed