Simplification of polynomial division

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SUMMARY

The polynomial division of the expression \(\frac{2x²+2x-12}{x-2}\) simplifies to \(2(x + 3)\) for all \(x > 2\). The solution involves factoring out a 2 from the numerator and recognizing that the remaining quadratic can be factored into binomials. While long polynomial division is an option, factoring is the more efficient method for this problem.

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Homework Statement


For all x>2, [tex]\frac{2x²+2x-12}{x-2}[/tex] simplifies to:
2(x - 2), x + 3, 2(x + 3)(x - 2), x - 2 or 2(x + 3).
(Problem taken from http://www.analyzemath.com/practice_tests/act/act_sample_1.html" , question five).


Homework Equations


None, AFAIK.


The Attempt at a Solution


I have seen the answer (which is 2(x+3)), but I couldn't figure out how to get there.
 
Last edited by a moderator:
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The problem as you have written it is not the same as in the link. This is the version in the link:
[tex]\frac{2x^2 + 2x -12}{x - 2}[/tex]

Factor 2 out of the numerator and then factor the remaining terms into the product of two binomials.
 
(A little typo :P)
Got it, thanks (quite easy, actually). I first thought of long polynomial division, but that's beyond my current knowledge, plus factoring is faster and easier.
 

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