Mathematics

Cinnamon

20 April, 16:40

Trevor is studying a polynomial function f (x). Three given roots of f (x) are - 7, 2i, and 7. Trevor concludes that f (x) must be a polynomial with degree 3. Which statement is true?

Trevor is correct.

Trevor is not correct because - 2i must also be a root.

Trevor is not correct there cannot be an odd number of roots.

Trevor is not correct because there cannot be both rational and complex roots.

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