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Factor this polynomial: x^2+12x+27
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Factor this polynomial: x^2+12x+27

User Scott Roberts
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2 Answers

3 votes

Answer:

The correct answers you're for are (x+3)(x+9)

User William Morris
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4 votes

Pairs of factors of 27 could be 1 and 27, 3 and 9, 9 and 3, and so on.

Do 1 and 27 add up to 12? No, so reject possible factors (x+1)(x+27).

Do 3 and 9 add up to 12? Yes. Thus, the correct factors are (x+3)(x+9).
User Leaf Bebop
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