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Lynna [10]
3 years ago
7

Use factoring to simplify the expression x^2-x-6/x-3 assume that x does not equal 3

Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0
This works out beautifully.  You COULD use long division here, but since your numerator is a quadratic, your first instinct should be to try and factor it.  If you factor it, it works out to be (x - 3)(x + 2).  Now it just so happens that when you do that, the (x - 3) in the numerator will cancel with the (x - 3) in the denominator leaving you with one sad and lonely (x + 2) as your answer.
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