Exercise 3.

Factor the polynomial tex2html_wrap_inline25 . Note that f(-2)=0.

Answer.

tex2html_wrap_inline29 .

Solution.

Since f(-2)=0, f(x) has a linear factor of the form (x-(-2))=(x+2). Using long polynomial division, we see that

displaymath31

and consequently

displaymath32

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Helmut Knaust
Sun Jun 8 13:50:05 MDT 1997

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