Teacher2Teacher 
Q&A #104 
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From: Martha Kumler <mskumler@frontiernet.net> To: Teacher2Teacher Public Discussion Date: 1998062214:06:13 Subject: Factoring trinomials Here is a method to factor trinomials with leading coefficient >1 Steps Example 1. Multiply c by a, then drop 6x^2  x  12 the leading coefficient x^2  x  72 2. Factor the new trinomial (x  9)(x + 8) 3. Replace the leading coefficient in front of the x in each factor (6x  9)(6x + 8) 4. Remove and discard all common factors within each parenthesis (2x  3)(3x + 4) and you will have the factors of the original trinomial Note: If the original problem contains a common factor, factor it out first before following this procedure. Ex: 6x^2  20x + 14 2(3x^2  10x + 7)
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