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16-09-2016
Mathematics

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Which shows one way to determine the factors of x3 + 4x2 + 5x + 20 by grouping?

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16-09-2016

Hello,

[tex]x^3+4x^2+5x+20\\ =x^2(x+4)+5(x+4)\\ =(x+4)(x^2+5)[/tex]

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