A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
y=x^2+2
y=x+4
SOMEONE PLEASE HELP ME ON THIS
anonymous
 5 years ago
y=x^2+2 y=x+4 SOMEONE PLEASE HELP ME ON THIS

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Equate the two equations, and then move everythign to one side so you have x^2+x2. That factors into (x1)^2=0, therefore x=1

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Y=y, so x^2+2=x+4 x^2+x2=0 (x1)(x+2)=0 x=1 or 2 Y=x+4 y=1+4. Or y=(2)+4 y=3 or y=6 so, x=1, y=3 or x=2, y=6

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0@spaceknight ... after you get that 1 , do i plug that into x to get y ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0&lotsobooks omg thanks . can you like tell me the steps on how you do it

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol oops i factored wrong sorry just listen to lotsobooks

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i already solved this problem in the one before...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so can i ask you guys another question ? i need help on my entire algebra2 homework

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you should try doing your own homework

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0&spaceknight i have been trying . if i knew how to do thiss i wouldntt be on my laptop asking for help . my teacher is the kind that doesnt like to explain too much .... I NEED HELP

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Set both equations equal to one another. Move all of the terms to the left side of the equation by adding or subtracting the terms on both sides of the equation. Combine like terms. Since it is a quadratic equation, you can factor it  use FOIL backwards, sort of. Once you have the 2 possible values of x, then, you can substitute them back inti either of the original equations  I picked x+4 since it is the easiest. Then, calculate the values of y. Remember to keep the x,y pairs together since they only go with one another.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0see i never got instructions like that. ok how about this . im about to show you my next problem. im going to try and solve it by myself to see if i can do it but can you still help me

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[6x ^{2}+5x+3=x+3\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so it will go like this i thinkk 6x^2+5x+3=x+3 +x3 +x3 hold on i think i messed up

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got 6x^2+6x=0 when i subtracted

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so what do i do now ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0In this case, it is easiest to subtract 6x from both sides.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0then \[6x ^{2} = 6x ?\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Right. Then, divide both sides by 6.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so then that is x^2 = 1x or x^2 = x ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Right. Now, divide both sides by x.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so then after that x = 1 ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Right. Plug 1 into one of the original equations and solve for y.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so whenever i plug it into the second equation how do i do it ? do i ignore the negative there already is ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0No, keep the negative. (1)+3=

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wouldnt that 1 just turn into a positive ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so it would be 1+3 so y = 4 ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0We missed a second solution when I had you subtract 6x from both sides.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you are AWESOMEEEE !!!! :p thanks for helping meee

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what step did we miss ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Not a step so much as another solution. At 6x^2+6x=0, it would have been better to factor 6x out. So, 6x (x+1)=0 x=1 or x=0. then, y=4 or y=3.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You're welcome! Have fun!
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.