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Polynomial Function - Problem 6

Teacher/Instructor Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

Imaginary zeros come in conjugate pairs, so if 3i is a zero, so would be -3i . Use the known zeros to write the polynomial in factored form. To be precise, we should be writing "a" out front as a leading coefficient. If you set up your imaginary zeros correctly, the i-terms will cancel out when you expand the polynomial into standard form.

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