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

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

(2x2 + 6)(x + 7)

(x2 + 3)(2x + 14)

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

User Ocho
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2 Answers

6 votes
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)
User Jsmars
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6 votes
Correct answer is A.


2x^3 + 14x^2 + 6x + 42 \\2x^2(x+7)+6(x+7) \\(x+7)(2x^2+6) \\(x+7)2(x^2+3)
User Muhammad Ateq Ejaz
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8.6k points