SOLUTION: x^2 + y^2 = 10 2x^2

SOLUTION: x^2 + y^2 = 10 2x^2 - y^2 17

Question 188832: x^2 + y^2 = 10
2x^2 - y^2 17
Answer by jonvaliente(64) (Show Source): You can put this solution on YOUR website!
Add the two equations to eliminate :

+
--------------------

Divide both sides by 3:

Take the square root of both sides
x=+/-3
Take the first equation and substitute the value of x:

Subtract 9 from both sides

Take the square root of both sides:
y=+/-1
Answer: x=+/-3 and y=+/-1
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