SOLUTION: Find a value for k so that 9m squared-kn squared will have the factors 3m+7n and 3m-7n
Help please, and show step by step. Thank You
Algebra ->
Length-and-distance
-> SOLUTION: Find a value for k so that 9m squared-kn squared will have the factors 3m+7n and 3m-7n
Help please, and show step by step. Thank You
Log On
Question 83584: Find a value for k so that 9m squared-kn squared will have the factors 3m+7n and 3m-7n
Help please, and show step by step. Thank You Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Find a value for k so that 9m squared-kn squared will have the factors 3m+7n and 3m-7n
-------------------
9m^2-kn = (3m+7n)(3m-7n)
9m^2-kn = 9m^2-49n^2
-kn = -49n^2
k= (-49n^2)/(-n)
k = 49n
=============
Cheers,
Stan H.
(