Suppose p is a polynomial of degree 3 with three zeros at x=1, x=2, and x=3. Find p if p(x) evaluated at 5 is 48.

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- Nov 6th 2012, 10:35 AMskweres1Polynomials
Suppose p is a polynomial of degree 3 with three zeros at x=1, x=2, and x=3. Find p if p(x) evaluated at 5 is 48.

- Nov 6th 2012, 10:50 AMPaulAdrienMauriceDiracRe: Polynomials
Since we know that 1,2,3 are roots, we can write that:

-> .

Now distribute 2 in :

.

So .

I hope you understand now. - Nov 6th 2012, 01:17 PMskweres1Re: Polynomials
Thank you so much! Huge help!!