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Mathematics 9 Online
OpenStudy (anonymous):

What polynomial has roots of -4, -2, and 5 ? x3 - x2 - 22x + 40 x3 + x2 - 22x - 40 x3 + 3x2 - 18x - 40 x3 - 3x2 - 18x + 40

sam (.sam.):

The second one x3 +x2 - 22x - 40

OpenStudy (rogue):

(x + 4)(x + 2)(x - 5) = x^3 + x^2 - 22x - 40

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