Concept explainers
To simplify: The difference quotient f(x+h)−f(x)h , where f(x)=x4 by using the Binomial Theorem.

Answer to Problem 84E
The simplified form is 4x3+6x2h+4xh2+h3 .
Explanation of Solution
Given information: The functionis f(x)=x4 .
Theorem used:The Binomial Theorem: (x+y)n=xn+nxn−1y+⋯+nCrxn−ryr+⋯+nxyn−1+yn , the coefficient of xn−ryr is nCr=n!(n−r)!r! .
Calculation:
Here, n=4 .
First write out the Pascal’s triangle such that the row that begins with 1, 4.
111121133114641
From the Pascal’s triangle, it is observed that the binomial coefficients of the expression are 1, 4, 6, 4 and 1.
Simplify f(x+h)−f(x)h , where f(x)=x4 by using formula in Binomial theorem.
f(x+h)−f(x)h=(x+h)4−x4h=x4+4x3h+6x2h2+4xh3+h4−x4h=4x3h+6x2h2+4xh3+h4h=4x3+6x2h+4xh2+h3
Thus, the simplified form is 4x3+6x2h+4xh2+h3 .
Chapter 8 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
- Solve the next ED: (see image)arrow_forwardWrite an equation for the polynomial graphed below. It will probably be easiest to leave your "a" value as a fraction. 8 7 + 9+ H 6 5 4 3 + 3 2 1 (-30) (-1,0) (1,0) (3,0) + -5 -4 -3 -2 2 3 4 7 2 -1 -2 3 (0,-3) f(x) = 456 -4 -5 -6+arrow_forwardWrite an equation for the polynomial graphed below 5+ 4 - 3 2 1 + + -5 4-3 -2 -1 1 2 3 4 5 -1 -2 y(x) = -3 -4 5 -5+ Qarrow_forward
- Write an equation for the polynomial graphed below 6+ 5 + -5 -4 3 y(x) = 4 3 2 1 -1 1 1 -1 -2 -3 -4 -5 2 3 4 5arrow_forwardWrite an equation for the polynomial graphed below 5+ 4 3 1 + + + -5-4-3-2 1 13 4 5 -1 -2 -3 -4 -5+ 4 5 Q y(x) =arrow_forward3. Solve the inequality, and give your answer in interval notation. - (x − 4)³ (x + 1) ≥ 0arrow_forward
- 1. Find the formula to the polynomial at right. Show all your work. (4 points) 1- 2 3 сл 5 6 -4 -3 -2 -1 0 2 3arrow_forward2. Find the leading term (2 points): f(x) = −3x(2x − 1)²(x+3)³ -arrow_forward1- √ √ √³ e³/√xdy dx 1 cy² 2- √ √² 3 y³ exy dx dy So 3- √ √sinx y dy dx 4- Jo √² Sy² dx dyarrow_forward
- A building that is 205 feet tall casts a shadow of various lengths æ as the day goes by. An angle of elevation is formed by lines from the top and bottom of the building to the tip of the shadow, as de seen in the following figure. Find the rate of change of the angle of elevation when x 278 feet. dx Round to 3 decimal places. Γ X radians per footarrow_forwardUse the information in the following table to find h' (a) at the given value for a. x|f(x) g(x) f'(x) g(x) 0 0 0 4 3 1 4 4 3 0 2 7 1 2 7 3 3 1 2 9 4 0 4 5 7 h(x) = f(g(x)); a = 0 h' (0) =arrow_forwardUse the information in the following table to find h' (a) at the given value for a. x f(x) g(x) f'(x) g'(x) 0 0 3 2 1 1 0 0 2 0 2 43 22 4 3 3 2 3 1 1 4 1 2 0 4 2 h(x) = (1/(2) ²; 9(x) h' (3)= = ; a=3arrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning





