Question: The number a is call a double zero (or a zero of multiplicty 2) of the polynomial function P iff: P(x)=(x-a)^2*q(x) and q(x)~=0. Prove that a is a double zero of P iff a is a zero of both P and P' and P"(a)~=0
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Don't ever post those things to my friend's lits again. You understand that my brain can't handle all those nonsensical letters with useless math symbols thrown into the mix.
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