A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
can someone check my work?
solve √(2x1)=x8
i came up with x=13 x=5. may i ask which one it is ?
 one year ago
can someone check my work? solve √(2x1)=x8 i came up with x=13 x=5. may i ask which one it is ?

This Question is Closed

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1if you put back x=5 you'll get \(\sqrt{9} =3 \) which isn't true...its just +3 and not 3

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1the reason you got 2 values instead of one is that you might have squared both sides of that equation. this adds/attaches one more root to the equation which may not satisfy the original equation.

Beautiful_Lier96
 one year ago
Best ResponseYou've already chosen the best response.0oooh. thanks :) i understand now. i did square both sides because i did not understand which property to do..

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1ok, welcome ^_^ glad i could help :)
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.