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Which of the following is a polynomial with roots 4, 2i, and −2i? f(x) = x3 − 4x2 + 8x − 4 f(x) = x3 − 8x2 + 16x − 4 f(x) = x3 − 4x2 + 4x − 16 f(x) = x3 − 4x2 + 8x − 16

Rodney Fox

in Mathematics

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Heather Maxwell on June 13, 2018

If the roots are r1,r2,r3, facotred polynomail looksl ike thisf(x)=(x-r1)(x-r2)(x-r3)givenroots for 4.2 i and -2if(x)=(x-4)(x-2i)(x-(-2i))f(x)=(x-4)(x-2i)(x+2i)expandf(x)=x3-4x2+4x-163 option


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