SOLUTION: Use the elimination method to find all solutions of the system of equations. (Round each answer to two decimal places.)
x^2 - y^2 = 25
2x^2 - y^2 = x + 55
Algebra.Com
Question 243633: Use the elimination method to find all solutions of the system of equations. (Round each answer to two decimal places.)
x^2 - y^2 = 25
2x^2 - y^2 = x + 55
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
x^2 - y^2 = 25
-(2x^2 - y^2 = x + 55) subtract
-------------------------------
-x^2=-x+25-55
-x^2+x+30=0
x^2-x-30=0
(x-6)(x+5)=0
x-6=0
x=6 ans. (6,+-3)
x=5=0
x=-5 ans.
6^2-y^2=25
36-y^2=25
-y^2=25-36
-y^2=-9
y^2=9
y=+-3 ans.
2*-5^2-y^2=-5+55
2*25-y^2=50
50-y^2=50
-y^2=0 ans. (-5,0)
RELATED QUESTIONS
Use the substitution method to find all solutions of the system of equations. (Round each (answered by checkley77)
Hi!
Use the substitution method to find all solutions of the system of equations.... (answered by jim_thompson5910)
Hi!
Use the substitution method to find all solutions of the system of equations.... (answered by jim_thompson5910)
Hi!
Use the elimination method to find all solutions of the system of equations.... (answered by jim_thompson5910)
Hi!
Find all solutions of the system of equations. (Round each answer to two decimal... (answered by Alan3354)
I need to use the elimination method to find all solutions of the system of equations for (answered by stanbon)
Use elimination method to find all solutions of the system of equations.
8x+4y-112... (answered by lmeeks54)
Use elimination method to find all solutions of the systems of equations.
4x^2-y^2=75
(answered by ankor@dixie-net.com)
use the elimination method to find all solution of the system of equations
2x^2-y^2=17... (answered by Boreal)