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Quadratic Simultaneous Equations
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Question 15
Hard
Solve algebraically the simultaneous equations
x2+xy+y2=7 x^2 + xy + y^2 = 7
x
2
+
x
y
+
y
2
=
7
2x+y=1 2x + y = 1
2
x
+
y
=
1
[5]
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Quadratic Simultaneous Equations