Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
BMI229
Group Title
Solve. 2x2 – 8x – 12 = 0
x = 1 ± 2
x = 2 ±
x = 2 ±
x = 2 ± 2
 one year ago
 one year ago
BMI229 Group Title
Solve. 2x2 – 8x – 12 = 0 x = 1 ± 2 x = 2 ± x = 2 ± x = 2 ± 2
 one year ago
 one year ago

This Question is Closed

dusty Group TitleBest ResponseYou've already chosen the best response.1
By factoring, we obtain: 2(x²  4x  6) = 0 Since the polynomial is unfactorable, we can apply quadratic formula x = (b ± √(b²  4ac))/2a, along with ax² + bx + c = 0, to obtain: a = 1 b = 4 c = 6 x = ((4) ± √((4)²  4*1*6))/(2*1) ==> (4 ± √(16 + 24))/2 ==> (4 ± √40)/2 ==> (4 ± √(10*4))/2 . . . . . . . . . . . . . . .Note that √4 = 2. ==> (4 ± 2√10)/2 . . . . . . . . . . . . . . . . Factor ==> 2(2 ± √10)/2 . . . . . . . . . . . . . . . . Reduce ==> 2 ± √10 Therefore, x = 2 ± √10
 one year ago

gorv Group TitleBest ResponseYou've already chosen the best response.0
yeah @dusty is right
 one year 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.