若X^2-Y^2=24,X+Y=6,求(X-Y)^2的值
3个回答
X^2-Y^2=24,
X+Y=6
x^2-y^2=24
(x+y)(x-y)=24
6(x-y)=24
(x-y)=4
(x-y)^2
=4^2
=16
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