SOLUTION: Please help me solve this equation: 2x^2-y^2=1 x^2-2y^2= -1

SOLUTION: Please help me solve this equation: 2x^2-y^2=1 x^2-2y^2= -1

Algebra.Com

Question 325940: Please help me solve this equation:
2x^2-y^2=1
x^2-2y^2= -1
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
Multiply eq. 2 by -2 and add to eq. 1,

Solve for x in each case of y using either equation.

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.
.

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(-1,1)
(-1,-1)
(1,1)
(1,-1)
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.

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