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11-09-2018
Mathematics

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14) Which expression is prime? A) x2 + 3x + 2 B) x2 + 8x + 7 C) x2 + 8x - 22 D) x2 + 12x + 27

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11-09-2018

C. the only factors of-22 are±1,±2,±11,±22 and no combination of those factors add to 8

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