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Mathematics 20 Online
OpenStudy (matt6288):

3x^3 + 9x^2 + x + 3

OpenStudy (anonymous):

Pull out a 3x^2 from first 2 terms... 3x^2(x+3)+1(x+3)= (3x^2+1)(x+3)

OpenStudy (nenadmatematika):

=3x^2(x^2+3)+(x+3)=(x+3)(3x^2+1)

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