Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
iheartfood
Group Title
Solve the polynomial equation...
(inside!)
Please show work!! and explain! Thanks!! :)
 2 years ago
 2 years ago
iheartfood Group Title
Solve the polynomial equation... (inside!) Please show work!! and explain! Thanks!! :)
 2 years ago
 2 years ago

This Question is Closed

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
dw:1352180620990:dw
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
You have to find one root, then use long division to factor the polynomial.
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
can u please show me how? idk how to find it :(
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Are you allowed to use a scientific calculator in your exams?
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
yes I'm allowed to :) this is a practice worksheet and i need to show my work :/ and idk how to solve much less show work lol :/
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
do u understand how to solve this? cuz i am lost :(
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
I would use trial an error from calculator, you key the equation into your calculator, then substitute any number for x and see if its equal to zero, if that value of x equals to zero, then that is the factor of the polynomial
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Ok, according to the trial an error, x=8 works, so, f(8)=15(8)^3119(8)^210(8)+16=0
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Now, x=8, (x8) is a factor of that polynomial. then use this to find other factors, by long division.
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
so, what exactly am i dividing?? and can you please type or draw out all the work in order?? :) i understand better that way :)
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
You are dividing (x8)
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Because x=8 for the f(x) is zero
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
okay, so I'm dividing 15x^3119x^210x+16 divided by x8?
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
k i got 15x^2+x2... so is that my answer?? :)
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
@.Sam. is that my answer???
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
kk thanks! :)
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
can u pls help me with another one>? :)
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
But if they tell you to solve, that means you have to find x from 15x^2+x2
 2 years ago

.Sam. Group TitleBest ResponseYou've already chosen the best response.1
Use factor or quadratic equation or completing the square to solve 15x^2+x2
 2 years ago

iheartfood Group TitleBest ResponseYou've already chosen the best response.0
kk thanks!! :)
 2 years ago
See more questions >>>
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.