SOLUTION: a^2+3ab-28b^2

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Question 849309: a^2+3ab-28b^2
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Do you see a 4 and a 7 in that trinomial? Quadratic in both a and in b. Think to look for binomial factors like this format:

%28a%2Bkb%29%28a-hb%29=a%5E2%2B3ab-28b%5E2
...
I say no more. Do this!!