Tom K. answered • 04/22/17

Knowledgeable and Friendly Math and Statistics Tutor

If all coefficients are rational, then if 2 - 3i is a root, so is 2 + 3i.

(x - (2 - 3i))(x - (2 + 3i)) = x^2 - 4x + 13

Eden J.

asked • 04/22/17Please help. due very soon and I'm confused

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Tom K. answered • 04/22/17

Knowledgeable and Friendly Math and Statistics Tutor

If all coefficients are rational, then if 2 - 3i is a root, so is 2 + 3i.

(x - (2 - 3i))(x - (2 + 3i)) = x^2 - 4x + 13

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