Difference between revisions of "2022 AMC 12B Problems/Problem 20"

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\textbf{(D)}\ 20 \qquad
 
\textbf{(D)}\ 20 \qquad
 
\textbf{(E)}\ 23 \qquad</math>
 
\textbf{(E)}\ 23 \qquad</math>
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== See Also ==
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{{AMC12 box|year=2022|ab=B|num-b=19|num-a=21}}
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{{MAA Notice}}

Revision as of 21:37, 17 November 2022

Problem

Let $P(x)$ be a polynomial with rational coefficients such that when $P(x)$ is divided by the polynomial $x^2+x+1$, the remainder is $x+2$, and when $P(x)$ is divided by the polynomial $x^2+1$, the remainder is $2x+1$. There is a unique polynomial of least degree with these two properties. What is the sum of the squares of the coefficients of that polynomial?

$\textbf{(A)}\ 10 \qquad \textbf{(B)}\ 13 \qquad \textbf{(C)}\ 19 \qquad \textbf{(D)}\ 20 \qquad \textbf{(E)}\ 23 \qquad$

See Also

2022 AMC 12B (ProblemsAnswer KeyResources)
Preceded by
Problem 19
Followed by
Problem 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AMC 12 Problems and Solutions

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