# integers proof

• February 7th 2010, 05:35 PM
Deepu
integers proof
Let x be an indeterminate.

Let $summation(i = 0 to n)a(subscript)i * x^i$ be a monic polynomial with integer coefficients and positive degree n.

Assume that this polynomial has a rational root r.
Prove that r is an integer.
• February 7th 2010, 06:46 PM
Bruno J.
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