A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Use synthetic division to find P(2) for P(x) = x^4 + 3x^3  6x^2  10x + 8
Choices :)
A.) 2
B.) 28
C.) 4
D.) 16
 2 years ago
Use synthetic division to find P(2) for P(x) = x^4 + 3x^3  6x^2  10x + 8 Choices :) A.) 2 B.) 28 C.) 4 D.) 16

This Question is Closed

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1You don't need synthetic division really. You can just plug in x = 2 and evaluate.

Brooke2013
 2 years ago
Best ResponseYou've already chosen the best response.0what does it have to equal to ?

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1P(x) = x^4 + 3x^3  6x^2  10x + 8 P(2) = (2)^4 + 3(2)^3  6(2)^2  10(2) + 8 P(2) = ???

Brooke2013
 2 years ago
Best ResponseYou've already chosen the best response.0I got 76 ? that's not a choice

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1P(2) = (2)^4 + 3(2)^3  6(2)^2  10(2) + 8 P(2) = 16 + 3(8)  6(4)  10(2) + 8 P(2) = 16 + 24  24  20 + 8 P(2) = 4

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1not sure where you went wrong, but I'm guessing you lost a sign somewhere

Brooke2013
 2 years ago
Best ResponseYou've already chosen the best response.0so you don't do the exponents ?

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1what do you mean by "do exponents"?

Brooke2013
 2 years ago
Best ResponseYou've already chosen the best response.0Like if you do 2^4 is 16 and 3(2) ^3 is 216 and 6(2) ^2 is 144 and 10(2) is 20 that's how I got 76 I added 16 + 216  144  20 + 8

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1you do 3(2)^3 = 3(8) = 24 NOT 3(2)^3 = 6^3 = 216 because exponents come before multiplication in PEMDAS

Brooke2013
 2 years ago
Best ResponseYou've already chosen the best response.0O, ok thanks so much for explaining :) it makes more since now
Ask your own question
Ask a QuestionFind 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.