Question

Suppose I tell you that one root of a polynomial function, f(x), is 4+3i . What must also be a root of f(x)?

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Eliseo

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88 Answers

1. Given that \(4+3i\) is a root.

2. For polynomials with real coefficients, complex roots always appear in conjugate pairs.

3. Therefore, the complex conjugate \(4-3i\) must also be a root.

Answer:4-3i

2. For polynomials with real coefficients, complex roots always appear in conjugate pairs.

3. Therefore, the complex conjugate \(4-3i\) must also be a root.

Answer:

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