SOLUTION: Factor by grouping, if possible. Show all necessary work. x^3 + 3X^2 - 2x - 6 where to start, I have no clue.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Factor by grouping, if possible. Show all necessary work. x^3 + 3X^2 - 2x - 6 where to start, I have no clue.      Log On


   



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) About Me  (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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