what should be added to the polynomial x2 - 5x +4 , so that (x-3) is factor of the resulting polynomial?
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Let F (x) = x²-5x + 4
substituting x=3.
F (x)=3²-5(3) + 4
=9-15+4
=13-15
= -2.
:: 2 must be added to F(x) such that (x-3) is a factor of F(x).
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