A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Solve the equation by completing the square.
6x^2x5=0
So far i got
x^21/6x5/6=0
x^21/6x=5/6
Now i dont understand this step by
add the square of half of 1/6 to both sides
I dont understand what that means please help
anonymous
 one year ago
Solve the equation by completing the square. 6x^2x5=0 So far i got x^21/6x5/6=0 x^21/6x=5/6 Now i dont understand this step by add the square of half of 1/6 to both sides I dont understand what that means please help

This Question is Closed

pooja195
 one year ago
Best ResponseYou've already chosen the best response.0Cant we just factor it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@pooja195 i have the steps and it says add the square of half of 1/6 to both sides but i dont understand how that answer is 1/144

pooja195
 one year ago
Best ResponseYou've already chosen the best response.0hmm im not sure how to do it that way @Loser66 might know :3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is what it says by the way http://prntscr.com/7dnq4a

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0you are good until \(x^2 (1/6)x (5/6)=0\) Now, I pick the middle term to say, ok? to have a complete the square, you have formula \((xa)^2 = x^2 2ax+a^2\) right? your middle term is (1/6) x, right?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0so, to find a, the term we need to have the complete square, I do \(2a x = \dfrac{1}{6}x\), hence \(2a=\dfrac{1}{6}\), so \(a =\dfrac{1}{12}\) so far so good?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0erm erm @Loser66 ok like what you saying sounds good lol but like i have to follow this way :S did you see the picture i posted ? http://prntscr.com/7dnq4a

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0Now, the original one \(x^2 2 (\dfrac{1}{12}) x +\color{red}{(\dfrac{1}{12})^2}  \color{red}{(\dfrac{1}{12})^2}\dfrac{5}{6}=0\)

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0@Tyler1204 it is not "sounds good". I explained you why 1/144 appears.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OH OH erm ok let me re read then lol sorry

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0You killed my feeling.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Grrr im still confused because for me it dos not say anything about that formula you said :/ (xa)^2=x^22ax+a^2 Did you open the picture? because like i have to follow what it says :S
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.