x-y=4, x2-xy=12
x - y = 4, x = y + 4 (equation 1) x^2 - xy = 12 (equation 2) replace x in the equation 2 we get: (y + 4)^2 -y(y +4) = 12 y^2 + 8y + 16 - y^2 - 4y = 12 4y = 12 - 16 = -4 y = -1 x = -1 + 4 = 3 The solution is (3, -1)
Question
Asked 11/22/2009 11:20:52 AM
Updated 4/15/2014 8:18:21 AM
g
Rating
8
x - y = 4, x = y + 4 (equation 1)
x^2 - xy = 12 (equation 2)
replace x in the equation 2 we get:
(y + 4)^2 -y(y +4) = 12
y^2 + 8y + 16 - y^2 - 4y = 12
4y = 12 - 16 = -4
y = -1
x = -1 + 4 = 3
The solution is (3, -1)
Added 4/15/2014 8:18:21 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [4/15/2014 8:21:54 AM]

There are no comments.

34,034,460
Popular Conversations
Whats is the First step in selective breeding
Weegy: 2 + 2 = 4
6/14/2021 2:03:46 PM| 5 Answers
Through which sense is rhythm best experienced in artworks?
Weegy: Rhythm is best experienced in artwork through the sense of sight. User: What is the meaning of life
6/16/2021 12:28:57 AM| 4 Answers
A strong negative feedback process can cause Earth's climate to reach ...
Weegy: A strong negative feedback process can cause Earth's climate to reach a state of balance.
6/20/2021 9:52:17 PM| 4 Answers
True or False: The higher the BAL, the higher the risk of a fatal ...
Weegy: The higher the BAL, the higher the risk of a fatal crash. TRUE. User: All of the information your brain ...
6/14/2021 7:12:01 PM| 3 Answers
which of the following sentences correctly uses a comparative ...
Weegy: George has a bigger appetite than Harry. -correctly uses a comparative adjective. User: adverbs can modify ...
6/22/2021 6:33:45 PM| 3 Answers
Modern machinery did all except:
6/23/2021 5:00:17 PM| 3 Answers
What Is Psychological Dependence
Weegy: Psychological dependence is generally meant to describe the emotional and mental processes that are associated ...
6/14/2021 1:33:36 AM| 2 Answers
When most people immigrated to America they
6/14/2021 4:08:50 AM| 2 Answers
8. Presenting the results of the risk assessment to the public is not ...
Weegy: Presenting the results of the risk assessment to the public is not a good strategy since they will increase ...
6/14/2021 4:13:15 AM| 2 Answers
S
L
Points 814 [Total 876] Ratings 3 Comments 784 Invitations 0 Online
S
L
L
Points 799 [Total 5166] Ratings 9 Comments 709 Invitations 0 Offline
S
L
P
P
Points 505 [Total 2900] Ratings 0 Comments 505 Invitations 0 Offline
S
L
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Points 325 [Total 4264] Ratings 23 Comments 95 Invitations 0 Offline
S
L
Points 319 [Total 319] Ratings 10 Comments 219 Invitations 0 Offline
S
L
Points 278 [Total 278] Ratings 0 Comments 278 Invitations 0 Offline
S
L
1
1
1
Points 208 [Total 2988] Ratings 11 Comments 98 Invitations 0 Offline
S
L
P
P
L
P
Points 198 [Total 6915] Ratings 6 Comments 138 Invitations 0 Offline
S
L
Points 173 [Total 366] Ratings 0 Comments 173 Invitations 0 Offline
S
L
Points 166 [Total 669] Ratings 7 Comments 96 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.