A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
What number should be added to both sides of the equation to complete the square?
x2 + 8x = 4
A.4
B.8
C.16
D.32
What value of c makes x2 + 6x + c a perfect square trinomial?
A.3
B.6
C.9
D.12
anonymous
 one year ago
What number should be added to both sides of the equation to complete the square? x2 + 8x = 4 A.4 B.8 C.16 D.32 What value of c makes x2 + 6x + c a perfect square trinomial? A.3 B.6 C.9 D.12

This Question is Closed

Haseeb96
 one year ago
Best ResponseYou've already chosen the best response.2to make complete square we first need to find the last term of quadratic equation for which we will use this formula dw:1436725323137:dw

Haseeb96
 one year ago
Best ResponseYou've already chosen the best response.2@misssunshinexxoxo help her and check my work also. is that formula correct?

misssunshinexxoxo
 one year ago
Best ResponseYou've already chosen the best response.1Yes correct.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0In order to complete the square, you need to have a polynomial whose seconddegree term (the \(x^2\)term) has a coefficient of 1. In both your given problems, the \(x^2\) term is simply \(x^2\), so you do have the coefficient of 1 that you need. To find the term that completes the square, divide the coefficient of the xterm by 2, and then square it. In you first problem, the coefficient of the xterm is 8. Divide 8 by 2 and then square it. That is what needs to be added to complete the square. In your second problem, the xterm has a coefficient of 6. Divide 6 by 2, then square it. That is what needs to be added to complete the square.
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.