|x2-y2-4|+(3√5x-5y-10)2=0

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|x2-y2-4|+(3√5x-5y-10)2=0|x2-y2-4|+(3√5x-5y-10)2=0|x2-y2-4|+(3√5x-5y-10)2=0|x2-y2-4|+(3√5x-5y-10)

|x2-y2-4|+(3√5x-5y-10)2=0
|x2-y2-4|+(3√5x-5y-10)2=0

|x2-y2-4|+(3√5x-5y-10)2=0
|x2-y2-4|+(3√5x-5y-10)²=0
x²-y²-4=0(1)且3√5x-5y-10=0 (2)
(2) ==》 x=√5/3y+2√5/3代入(1)
(√5/3y+2√5/3)²-y²-4=0
整理:y^2-5y+4=0
解得两组解
y1=1, x1=√5

y2=4, x2=2√5/3