Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
youngstar10
Group Title
What number must you add to complete the square?
x2 + 14x = 7
A. 196
B. 49
C. 7
D. 14
 6 months ago
 6 months ago
youngstar10 Group Title
What number must you add to complete the square? x2 + 14x = 7 A. 196 B. 49 C. 7 D. 14
 6 months ago
 6 months ago

This Question is Closed

myininaya Group TitleBest ResponseYou've already chosen the best response.1
\[x^2+bx+(b/2)^2=(x+b/2)^2\]
 6 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
so add to both sides \[(b/2)^2 \] can you guess what b should be?
 6 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
well b is just the 14 bx is 14x but our formula calls for just b which is 14
 6 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
so plug 14 into that (b/2)^2 thing to figure out your answer as to what to add to both sides in order to complete the square
 6 months ago

youngstar10 Group TitleBest ResponseYou've already chosen the best response.0
oh 196
 6 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
\[(\frac{14}{2})^2 \] what is 14/2?
 6 months ago

youngstar10 Group TitleBest ResponseYou've already chosen the best response.0
7 so the answer would be 49
 6 months ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
\[(\frac{14}{2})^2=(7)^2=49\] right
 6 months ago
See more questions >>>
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.