Silenthill
is x^3 + 2x^2 + 3x + 1 a linear combination of x^3, x^2+3x, x^2 + 1 in P4?



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anonymous
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i think so

anonymous
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oh i should think before i speak

anonymous
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ok now i really think so
add them up

anonymous
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since
\[x^3+x^2+3x+x^2+1=x^3+2x^2+3x+1\] the answer is yes