A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
Find the remainder when f(x) is divided by (x  k)
f(x) = 8x^4 + 7x^3 + 5x^2  5x + 35; k = 4
anonymous
 3 years ago
Find the remainder when f(x) is divided by (x  k) f(x) = 8x^4 + 7x^3 + 5x^2  5x + 35; k = 4

This Question is Closed

RadEn
 3 years ago
Best ResponseYou've already chosen the best response.0use the remainder theorem, remainder = f(4) = .... (just plug x=4)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0What did you substitute for x?

ZeHanz
 3 years ago
Best ResponseYou've already chosen the best response.1You can use synthetic division: 4 [ 8 7 5 5 35 ] 32 156 644 2556 + 8 39 161 639 2591 < remainder Explanation of synthetic division: write out the coefficients of the powers of x, in the right order (8, 7, 5, 5 and 35) Put 4 in front (the value of k) the first coefficient, 8 goes straight down. Multiply 4 with 8, put 32 in the next column. Add the numbers: 39 Multiply 4 with 39, put 156 in the next column. Adding gives 161. Etc. the last number you get this way is the remainder!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.