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  3. suppose that f(x)=x^n+a_(n-1) x^(n-1)+?+a_0?z[x].

Suppose that f(x)=x^n+a_(n-1) x^(n-1)+?+a_0?Z[x]. If r is rational and x-r divides f(x), prove that r is...

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Advance Math

Suppose that f(x)=x^n+a_(n-1) x^(n-1)+?+a_0?Z[x]. If r isrational and x-r divides f(x), prove that r is an integer.

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solutionwhich means Suppose is an integer and and sothat the fraction is in reduced    See Answer
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