Question 281957: Factor by grouping, if possible. Show all necessary work.
x^3 + 3X^2 - 2x - 6
where to start, I have no clue.
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Factor by grouping, if possible. Show all necessary work.
x^3 + 3X^2 - 2x - 6
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Comment: Usually, when you have 4 terms to factor, you should
think of arranging the 4 terms.
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Your Problem:
x^3-2x + 3x^2-6
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Factor the 1st two and the last two terms separately:
x(x^2-2) + 3(x^2-2)
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Factor againL
(x^2-2)(x+3)
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