2m^2x-3·n^1/2-3y与-3m^1/3-4x·n^1/2y+4是同类项,那么x^2-y^2=

2m^2x-3·n^1/2-3y与-3m^1/3-4x·n^1/2y+4是同类项,那么x^2-y^2=
2m^2x-3·n^1/2-3y与-3m^1/3-4x·n^1/2y+4是同类项,那么x^2-y^2=

2m^2x-3·n^1/2-3y与-3m^1/3-4x·n^1/2y+4是同类项,那么x^2-y^2=
∵2m^2x-3·n^1/2-3y与-3m^1/3-4x·n^1/2y+4是同类项
∴2x=1/3 1/2-3y=1/2y+4
解得x=1/6 -7/2y=7/2 y=-1
x²-y²=(1/6)²-(-1)²=1/36-1=-35/36