For the functions f and g find a. (f+ g)(x), b. (f- g)(x), c. (f• g)(x), and d. |(x). f(x) = x - 8, g(x) = 7x +9 ... a. (f+g)(x) = 8x +1 b. (f- g)(x) = - 6x – 17 E. (f•g)(x) = |7x - 47x- 72 x-8 크. |(x) = 7x+9

For the functions f and g find a. (f+ g)(x), b. (f- g)(x), c. (f• g)(x), and d. |(x). f(x) = x - 8, g(x) = 7x +9 ... a. (f+g)(x) = 8x +1 b. (f- g)(x) = - 6x – 17 E. (f•g)(x) = |7x - 47x- 72 x-8 크. |(x) = 7x+9

Intermediate Algebra

19th Edition

ISBN:9780998625720

Author:Lynn Marecek

Publisher:Lynn Marecek

Chapter6: Factoring

Section6.5: Polynomial Equations

Problem 6.100TI: For the function f(x)=x28x+3 , (a) find x when f(x)=4 (b) Find two points that lie on the graph of...

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Question

For the functions f and g find a. (f+ g)(x), b. (f- g)(x), c. (f• g)(x), and d.
|(x).
f(x) = x - 8, g(x) = 7x +9
...
a. (f+g)(x) = 8x +1
b. (f- g)(x) = - 6x – 17
E. (f•g)(x) = |7x - 47x- 72
d.
x-8
|(x) =
7x+9

Expert Solution

Step 1

Solution ) f (x) = x - 8 , g (x) = 7x + 9

a ) ( f + g )x = f(x) + g (x)

( f + g )x = x - 8 + 7x + 9

( f + g )x = 8x + 1

b ) ( f - g )x = f (x) - g (x)

( f - g )x = x - 8 - ( 7x + 9)

( f - g )x = x - 8 - 7x - 9

( f - g )x = - 6x - 17

c) ( f *g)x = f (x) × g(x)

( f *g)x = ( x - 8 ) ( 7x + 9 )

( f *g)x = 7x² + 9x - 56x - 72

( f *g)x = 7x² - 47x - 72

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