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OpenStudy (anonymous):
Factor: x2 + 11x + 28 A. (x + 7)(x + 4) B. (x + 7)(x - 4) C. (x + 8)(x + 3) D. (x + 14)(x + 2)
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OpenStudy (anonymous):
A, because when factorising you are looking for a pair of numbers which add to make constant (in this case 28) and multiply to make the coeffiecent of x (in this case 11). This pair of numbers is posative 4, and posative 7.
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