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Mathematics 9 Online
OpenStudy (anonymous):

factor completely: 3x^2 -11x -4

OpenStudy (anonymous):

Use the factoring AC Method. f(x) = 3x^2 - 11x - 4 Find 2 numbers b1 and b2, with the product b1.b2 = -12 and the sum (b1 + b2) = -11. They are b1= 1 and b2 = -12. Substitute the term (-11x) by the 2 terms (x) and (-12x), then factor. f(x) = (x - 4)(3x + 1).

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