若X^2-5XY+6Y^2=0,则X与Y的比值是
4个回答
X^2-5XY+6Y^2=0
x^2+[(-2y)+(-3y)]x +(-2y)×(-3y)=0
即(x-2y)(x-3y)=0
那么x=2y或x=3y
故x/y=2或3
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