A polynomial has one root that equals 2 + i. Name one other root of thispolynomial.

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03-11-2022
Mathematics

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A polynomial has one root that equals 2 + i. Name one other root of thispolynomial.

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IrmaT41160 IrmaT41160 · Answer 1 · 2022-11-03T09:24:09+01:00

IrmaT41160 IrmaT41160

03-11-2022

In a polynomial, if it has an imaginary root, then it also has the conjugate of that root. In this case, since 2 + i, is a root then 2 - i, is also a root.

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