A community for students.
Here's the question you clicked on:
 0 viewing
neverforgetvivistee
 3 years ago
when do you and when do you not use FOIL for radical equations?
look at this video where the guy uses FOIL http://www.youtube.com/watch?v=LY8VBsLf4M
and for equations like √x+8=√3x+8 you would not use FOIL
why is this?
neverforgetvivistee
 3 years ago
when do you and when do you not use FOIL for radical equations? look at this video where the guy uses FOIL http://www.youtube.com/watch?v=LY8VBsLf4M and for equations like √x+8=√3x+8 you would not use FOIL why is this?

This Question is Closed

slaaibak
 3 years ago
Best ResponseYou've already chosen the best response.0FOIL is used when two brackets should be multiplied with each other. This is not the case here. You would only need subtraction and division.

neverforgetvivistee
 3 years ago
Best ResponseYou've already chosen the best response.0you only need subtraction and division for what? are you saying that the guy shouldn't have used foil ?

Elekt
 3 years ago
Best ResponseYou've already chosen the best response.1No, he is saying that you only need that for your expression.

neverforgetvivistee
 3 years ago
Best ResponseYou've already chosen the best response.0thanks i get it i guess i'm just really sleepy right now no duh
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.