d) Let f(x) = x² – x – 5 Simplify f(x + h) – f(x) Correction: f(x +h) = (x + h)² - (x + h) - 5 =x² + 2xh + h² – x-h-5 f(x + h)-f(x) = x² + 2xh + h² – x – h- 5– x² – x – 5 = 2xh - 2x + h² - h-10

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.2: Polynomial Functinos And Their Graphs
Problem 2E: Describe the end behavior of each polynomial. (a) y=x38x2+2x15 End behavior: y as x y as x (b)...
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In the following examples, some mistakes have occurred. Identify the mistakes and make corrections. 

d) Let f(x) = x² – x – 5 Simplify f(x + h) – f(x)
Correction:
f(x +h) = (x + h)² - (x + h) - 5
=x² + 2xh + h² – x-h-5
f(x + h)-f(x)
= x² + 2xh + h² – x – h- 5– x² – x – 5
= 2xh - 2x + h² - h-10
Transcribed Image Text:d) Let f(x) = x² – x – 5 Simplify f(x + h) – f(x) Correction: f(x +h) = (x + h)² - (x + h) - 5 =x² + 2xh + h² – x-h-5 f(x + h)-f(x) = x² + 2xh + h² – x – h- 5– x² – x – 5 = 2xh - 2x + h² - h-10
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