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Mathematics 7 Online
OpenStudy (anonymous):

factor completely 4x3 + 12x2 + 3x + 9

OpenStudy (jhannybean):

solve it by grouping. \[\large (4x^3+12x^2)+(3x+9)\]\[4x^2(x+3)+3(x+3)\] regroup\[\large (4x^2+3)(x+3) = 4x^3+12x^2+3x+9\]

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