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16 December, 09:23

Which of the following is the complete list of roots for polynomial function f (x) = (x^2+6x+8) (x^2+6x+13) ?

A) - 3+2i,-3-2i

B) - 2,-4

C) - 2,-4,-3+2i,-3-2i

D) - 2,-4,-3+2i, 3+2i

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Answers (1)
  1. 16 December, 09:43
    0
    Roots of the 1st parenthesis are x' = - 2 & x" = - 4

    Roots of the 2nd parenthesis are x'" - 3+2i & x"" = - 3-2i

    Answer C
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