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OpenStudy (anonymous):
which of the following is a polynomial with roots -2, -2i, and 2i?
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OpenStudy (amistre64):
when you plug in those value, you should get a zero for a result of its a "root"
OpenStudy (amistre64):
also: a(x-r1)(x-r2)(x-r3) using the roots will expand into it; using "a" as a scalar
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