A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Subtracting radicals?
anonymous
 4 years ago
Subtracting radicals?

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\left( 7√54 \right)  \left( 5+√24 \right)\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0You can split each radical up like so: \[\sqrt{54} = \sqrt{6 \times 9}\] You can also perform the same for the other radical: \[\sqrt{24} = \sqrt{6 \times 4}\] Once you've done that, you can pull out any perfect squares that you have found. In this case, you've just found 9 and 4, which root down to 3 and 2, respectively. Now you have: \[\left( 7 3\sqrt{6} \right)  \left( 5 + 2\sqrt{6} \right)\] Does that help?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I've gotten as far as that, simplifying the radicals. But I'm confused as to how to go about the subtracting with a subtraction problem within a subtraction problem

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Distribute 1 to the brackets..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[1(5+2 \sqrt{6}) = ??\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Now: \[7 3\sqrt{6}  5  2\sqrt{6} = ??\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Then where is the problem?? Yes, well done...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I guess I just needed a walkthrough. Hah thanks!
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.