SmawaffRudo SmawaffRudo

21-11-2016
Mathematics

contestada

Factor completely: 2x3 + 14x2 + 6x + 42

2[(x2 + 3)(x + 7)]

(2x2 + 6)(x + 7)

(x2 + 3)(2x + 14)

2(x3 + 7x2 + 3x + 21) ...?

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leeandrews2 leeandrews2

22-11-2016

you would first factor out the 2 and then use the reverse foil method and get the first answer. 2(x^2+3)(x+7)

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alsteva alsteva

22-11-2016

Correct answer is A.

[tex]2x^3 + 14x^2 + 6x + 42 \\2x^2(x+7)+6(x+7) \\(x+7)(2x^2+6) \\(x+7)2(x^2+3)[/tex]

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