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They are just powers of 3

Algebra Level 3

What is the remainder when the polynomial \(x+x^{3}+x^{9}+x^{27}+x^{81}+x^{243} \) is divided by \(x^2-1\)?

NMTC problem.

\[4x\] \[6x\] \[1\] None of these choices \[2x\]

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Excel in math and science

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by Akshat Sharda

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