A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Open

gypsy1274
 one year ago
Best ResponseYou've already chosen the best response.0Let's use \(x^2  4x  8 = 0\) to demonstrate Completing the Square. 1. Put the constant term on the other side of the equation by adding 8 to both sides. \(x^2  4x = 8\) 2. Look at the coefficient of the xterm (4) > take half this term (2) and square it (+4). Add this to both sides. \(x^2  4x + 4 = 12\) This is a perfect square and can be factored. 3. Factor: \((x2)^2\) (hint: The constant term is the same as half of the x term that was squared in step 2.) 4. Solve for x: \(\sqrt{(x2)^2} = \sqrt{12}\) \(x  2 = \pm 2 \sqrt{3}\) \(x = 2 \pm 2 \sqrt{3}\) Please ask if anything is unclear.
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.