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I have this:

$f(x) = 0$

where

$f(x) := \cfrac{3x^2 - 5x + 2}{x + 2}$

How do I solve that?

Do I multiply by $(x + 2)$ and solve $3x^2 - 5x + 2=0$ or solve $3x^3 + x^2 - 8x + 4=0$ with Horner method?

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    Actually, the denominator *does* enter into finding the roots: After you've found the roots of the numerator, you have to check that they are *not* roots of the denominator.2013-07-24

1 Answers 1

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In plain words, if $a/b$ is defined and equal to $0$, then $a=0$. Of course, this does imply that $a\cdot b=0,$ but that isn't relevant. You need only determine the solutions of $3x^2-5x+2=0$.

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    Okay, thanks for your help everyone. Much appreciated.2012-08-09