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Mathematics 18 Online
OpenStudy (anonymous):

Factor the Trinomial c^2 + 11c + 28

jimthompson5910 (jim_thompson5910):

c^2 + 11c + 28 c^2+4c+7c+28 c(c+4)+(7c+28) c(c+4)+7(c+4) (c+7)(c+4) So c^2 + 11c + 28 = (c+7)(c+4)

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