SOLUTION: What are all the solutions using the elimination method? x − y2 + 9 = 0 2x2 + y2 − 10 = 0

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: What are all the solutions using the elimination method? x − y2 + 9 = 0 2x2 + y2 − 10 = 0      Log On


   

Question 963109: What are all the solutions using the elimination method?
x − y2 + 9 = 0
2x2 + y2 − 10 = 0
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
First equation has -y%5E2 and second equation has y%5E2. Just sum the corresponding MEMBERS...

x%2B2x%5E2-1=0

You can work and finish from that?
GOOD. Understood:

system%28x-y%5E2%2B9=0%2C2x%5E2%2By%5E2-10=0%29

x-y%5E2%2B9%2B2x%5E2%2By%5E2-10=0%2B0

x%2B2x%5E2%2B9-10-y%5E2%2By%5E2=0

x%2B2x%5E2-1%2B0=0

2x%5E2%2Bx-1=0
%282x-1%29%28x%2B1%29=0

x=1%2F2 OR x=-1
Which is part of the solution...