Find all real zeros of the polynomials. 19. f(x)=x' +2x² – 12x– 24

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Complex Numbers
Section4.2: Complex Solutions Of Equations
Problem 7ECP: Find the cubic polynomial function f with real coefficients that has 1 and 2+i as zeros, and f2=2.
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Find all real zeros of the polynomials.
19. f(x)=x' +2x² –12x- 24
Transcribed Image Text:Find all real zeros of the polynomials. 19. f(x)=x' +2x² –12x- 24
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