5. We know 6+ i and 4-√3 are roots of a 4th degree polynomial. Find the remaining roots.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.6: Multiplying Polynomials
Problem 44WE
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Answer the question 5 & 6
5. We know 6+ i and 4-√3 are roots of a 4th degree polynomial. Find the remaining roots.
6. For i = √-1, what is the sum (7 + 3i) + (−8+9i)?
(A) -1 + 12i
(B)-1-6i
(C) 15 + 12i
(D) 15-6i
Transcribed Image Text:5. We know 6+ i and 4-√3 are roots of a 4th degree polynomial. Find the remaining roots. 6. For i = √-1, what is the sum (7 + 3i) + (−8+9i)? (A) -1 + 12i (B)-1-6i (C) 15 + 12i (D) 15-6i
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