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Mathematics 9 Online
OpenStudy (anonymous):

can somebody explain how to factor 3x²+6x-27 completely

geerky42 (geerky42):

Start with factoring out 3.

OpenStudy (anonymous):

this could be a possible answer but i dont know how i got the -2 out.... 3(x + 4)(x - 2) -2

OpenStudy (mathstudent55):

Factoring a quadratic trinomial. 1. Try to factor a common factor from all terms. 2. If you now have a trinomial of the form \(x^2 + ax + b\), find two numbers that multiply to b and add to a. Call those numbers p and q. 3. The factored trinomial is \((x + p)(x + q)\).

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