Posted by Mandana on Sunday, December 18, 2011 at 9:21am.
Determine 2 values of k so that trinomials can be factored over integers 36m^2 + 8m + k and 18x^2  42y + k.

Math  Steve, Sunday, December 18, 2011 at 6:01pm
Not quite sure what you're getting at, but
36m^2 + 8m  28 = (9m7)(4m+4)
In fact, given any n,
(9m  (9n+7))(4m + (4n+4)) = 36m^2 + 8m + (36n^2 + 64n + 28)
Assuming that the second one is 42x, not 42y,
(9x3)(2x4) = 18x^2  42x + 12
I'm sure you can find many more
There's probably some numbertheoretic principles that will enable you to find a general formula, but I'd have to study up a bit.
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