Write down monic polynomials in R[X] of least possible degree which have the following complex numbers as roots:  −2 and 5 + 3i;  1 + i and 3i;  5 and −√7.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter8: Polynomials
Section8.4: Zeros Of A Polynomial
Problem 2TFE
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Write down monic polynomials in R[X] of least possible degree which have the following complex numbers as roots:
 −2 and 5 + 3i;
 1 + i and 3i;
 5 and −√7.

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