Question 171935
P(x)= x^3 - 5x^2 + 3x + 9
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If x-1 is a factor then x=1 and 1-5+3+9=0 false.
If x+3 then x=-3 and -27-45-9+9=0 false.
If x-3 then x=3 and 27-45+9+9=0 true.
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Ed