A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Complete the square:
(5/7)x^2+(9/10)x+(13/70)=0
anonymous
 5 years ago
Complete the square: (5/7)x^2+(9/10)x+(13/70)=0

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0do i multiply by 7/5 to get the coefficient of the squared term to be 1?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Divide everything by 5/7

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0firstly divide everything by 5/7 x^2 + (63/50)x(13/50) = 0 (x+63/100)^2  3969/10000  13/50 = 0 (x+63/100)^2 = 6569/10000 x =  (63/100)+sqrt(6569/10000)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0then evaluate that .. that should hopefully be right (although i did it in my head, method is sound tho)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0looking over my numbers...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0got it! just went wrong on one of those huge fractions

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alternatively it is usually better instead of dividing it properly by 5/7, to put it outside a large bracket and leave it there, from start; 5/7[x^2+(63/65)x(13/50) = 0

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0forgot end bracket .. but u get the gist

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I really appreciate it!
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.