proof of Vieta’s formula

Proof: We can write P(x) as


Since we also have that


setting the coefficients equal yields


which is what the theorem stated.

Title proof of Vieta’s formula
Canonical name ProofOfVietasFormula
Date of creation 2013-03-22 15:26:59
Last modified on 2013-03-22 15:26:59
Owner neapol1s (9480)
Last modified by neapol1s (9480)
Numerical id 4
Author neapol1s (9480)
Entry type Proof
Classification msc 12Y05