A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
anonymous
 one year ago
Solve 0=x^34x27x+28 and tell if it is extraneous
anonymous
 one year ago
Solve 0=x^34x27x+28 and tell if it is extraneous

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Factor by grouping \[0=(x^34x^2)+(7x+28)\] Factor the GCF out of each ( ) so that you have the same expression left in both

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So, I got (x^27)(x4)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes then set each of those equal to 0 and solve for x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the 4 is right \[x^27=0\] \[x^2=7\] \[x=\pm \sqrt7\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you know the meaning of an extraneous solution?
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.