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Mathematics 17 Online
OpenStudy (anonymous):

Factor completely: x2 − 3x − 28 (x − 7)(x + 4) (x − 4)(x + 7) (x + 28)(x − 1) (x − 14)(x + 2)

OpenStudy (saifoo.khan):

(x − 7)(x + 4)

jimthompson5910 (jim_thompson5910):

x^2 − 3x − 28 x^2 - 7x+4x − 28 x(x-7)+4(x-7) (x+4)(x-7) (x-7)(x+4)

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