A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

Retract
 2 years ago
Best ResponseYou've already chosen the best response.0The square root and 2th power exclude each other as they are both doing the opposite. You therefore get: \[4x^2  3 = 64\]

shaun786
 2 years ago
Best ResponseYou've already chosen the best response.04x^2 = 67 x^2 = 67/4 x = 67/4 , 67/4

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0But 64 does not become 8?

Kreshnik
 2 years ago
Best ResponseYou've already chosen the best response.0shaun has it right untill he gets rid of power it should be: \[\LARGE x^2=\frac{67}{4}\] then... \[\LARGE x=\pm \sqrt{\frac{67}{4}}\] but first of all... just want to ask you. is this the given: \[\LARGE \sqrt{(4x^23)^2}=64 \]

shaun786
 2 years ago
Best ResponseYou've already chosen the best response.0oh yeah forgot abt the squarerott. Thanks kreshnik

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0Yes! That's the given.

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0Actually I don't know whether the square root is for everything or only for (4x^23)^2

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0But it does matter, right?

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0I mean if it was for everything then 64 will become 8?

lalaly
 2 years ago
Best ResponseYou've already chosen the best response.0What do u mean for everything?

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0for the whole equation

lalaly
 2 years ago
Best ResponseYou've already chosen the best response.0the whole sqrt is squared? \[(\sqrt{4x^23})^2=64\]

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0Okay, sorry. I'm a bit confused. I just realised the question does not even have a square root, lol. Sorry!

lalaly
 2 years ago
Best ResponseYou've already chosen the best response.0haha so what is the question?

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0I have just edited the question.

eliassaab
 2 years ago
Best ResponseYou've already chosen the best response.2\[ (4x^23)^2=64 \\ (4x^23)=8 \\ 4 x^2 = 11\\ x^2 = \frac {11}4\\ x=\pm \sqrt{\frac {11}4}\\ x =\pm \frac {\sqrt {11}} 2 \]

need_help!
 2 years ago
Best ResponseYou've already chosen the best response.0Thank you so much =)
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.