Paloma Y.

# Suppose that p(x) is a polynomial with integer coefficients of degree 3 and x = 2 is ??a zero, and x = v 5 is a zero.

What must the third zero be? Why? Similarly, for any √ ?polynomial with integer coefficients, if it has one irrational zero of the form a + b c (with a, b, c integers, and c > 0), what can we conclude about some of its other zeros?

John R.

tutor

Do you know what the polynomial is?

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03/01/13

Paloma Y.

NO.

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03/01/13