Four roots of a polynomial are 2, 4 + i, 5 – 3i, and –2i. Which number is NOT necessarily a root of the equat

Favorites|Homepage
Subscriptions | sitemap

HOME > > Four roots of a polynomial are 2, 4 + i, 5 – 3i, and –2i. Which number is NOT necessarily a root of the equat

Four roots of a polynomial are 2, 4 + i, 5 – 3i, and –2i. Which number is NOT necessarily a root of the equat

[From: ] [author: ] [Date: 13-01-23] [Hit: ]

However, having 2 as a root does not imply that -2 is also a root, as the complex conjugate of 2 is also 2, and we already know that is a root.......

33. Four roots of a polynomial are 2, 4 + i, 5 – 3i, and –2i. Which number is NOT necessarily a root of the equation?

A. -2
B. 5 + 3i
C. 2i
D. 4 – i

-

If a polynomial has real coefficients, then for any complex root a+ib, there must exist a second root which is the somplex conjugate of the first (a - ib).

However, having 2 as a root does not imply that -2 is also a root, as the complex conjugate of 2 is also 2, and we already know that is a root.

1

keywords: and,Four,of,are,NOT,roots,is,polynomial,equat,number,the,ndash,necessarily,root,Which,Four roots of a polynomial are 2, 4 + i, 5 – 3i, and –2i. Which number is NOT necessarily a root of the equat

New

Hot