Use the quadratic formula to solve 4y2 + 8y + 7 = 4.
4y^2 + 8y + 7 = 4 4y^2 + 8y + 7 - 4 = 0 4y^2 + 8y + 3 = 0 a = 4, b = 8, c = 3 b^2 - 4ac = 8^2 - 4(4)(3) = 64 - 48 = 16 x = (-8 ± sqrt 16)/8 = (-8 ± 4)/8 x = -1/2 or x = -3/2
Question
Updated 6/6/2014 12:03:08 AM
Edited by andrewpallarca [6/6/2014 10:44:44 AM]
Rating
3
4y^2 + 8y + 7 = 4
4y^2 + 8y + 7 - 4 = 0
4y^2 + 8y + 3 = 0
a = 4, b = 8, c = 3
b^2 - 4ac = 8^2 - 4(4)(3) = 64 - 48 = 16
x = (-8 ± sqrt 16)/8
= (-8 ± 4)/8
x = -1/2 or x = -3/2
Confirmed by andrewpallarca [6/6/2014 10:44:45 AM]

27,106,266
*
Get answers from Weegy and a team of really smart live experts.
Popular Conversations
Solve –19 = x – 4
Weegy: x/2 = 6 User: Find the value of x in the equation 9 – 4x = 57
What is the name of the mechanical process that breaks up food in the ...
Weegy: User: Sue, a dental hygienist, is getting her instruments ready for her next patient, who is coming for a ...
Which of the following is an example of an improper fraction? ...
Weegy: 3 3/5 as an improper fraction is 18/5. User: How are unlike fractions identified? A. The numerators ...
S
L
Points 217 [Total 217] Ratings 0 Comments 167 Invitations 5 Offline
S
L
P
Points 207 [Total 407] Ratings 0 Comments 207 Invitations 0 Offline
S
L
R
P
R
Points 137 [Total 460] Ratings 0 Comments 7 Invitations 13 Offline
S
R
L
R
P
R
P
R
R
Points 88 [Total 822] Ratings 0 Comments 8 Invitations 8 Offline
S
Points 49 [Total 49] Ratings 1 Comments 39 Invitations 0 Offline
S
Points 11 [Total 11] Ratings 0 Comments 11 Invitations 0 Offline
S
Points 11 [Total 11] Ratings 1 Comments 1 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 0 Comments 0 Invitations 1 Offline
S
Points 3 [Total 3] Ratings 0 Comments 3 Invitations 0 Offline
S
Points 1 [Total 1] Ratings 0 Comments 1 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.