Determine the degree of the following functions and their leading coefficients, and use this info to describe thier end behavior g(x)= - 4x5 (2x -5)3 (-x+1)7

Calculus: Early Transcendentals
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ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Determine the degree of the following functions and their leading coefficients, and use this info to describe thier end behavior

g(x)= - 4x5 (2x -5)3 (-x+1)7

Expert Solution
Step 1

Consider the polynomial:

gx=-4x52x-53-x+17=-4x52x3-32x2·5+3·2x·52-53-x+17=-4x58x3-60x2+150x-125-x+17

Apply binomial theorem:

-x+17=7!0!7-0!-x7·10+7!1!7-1!-x6·11+7!2!7-2!-x5·12+7!3!7-3!-x4·13+7!4!7-4!-x3·14+7!5!7-5!-x2·15+7!6!7-6!-x1·16+7!7!7-7!-x0·17=-x7+7x6-21x5+35x4-35x3+21x2-7x+1

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