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12x4 + 39x3 + 9x2

Guest May 8, 2017
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\(12x^4 + 39x^3 + 9x^2\\ = 3x^2(4x^2+13x+3)\\ =3x^2(4x + 1)(x + 3)\)

MaxWong  May 8, 2017

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