SOLUTION: Need Help Factoring This Trinomial. a^2+2ab-3b^2
-> SOLUTION: Need Help Factoring This Trinomial. a^2+2ab-3b^2
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On this type of problem, since the coefficient for the a^2 term is 1, you are looking for factors of 3 that sum to 2. The factors of 3 are 1 and 3. 3-1 equal 2.