(-3ab³)²÷(2分之1a²b³)×2ab³【(x-2y)²-2(x+y)(3x-y)-6y²】÷6y²
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(-3ab³)²÷(2分之1a²b³)×2ab³【(x-2y)²-2(x+y)(3x-y)-6y²】÷6y²
(-3ab³)²÷(2分之1a²b³)×2ab³
【(x-2y)²-2(x+y)(3x-y)-6y²】÷6y²
(-3ab³)²÷(2分之1a²b³)×2ab³【(x-2y)²-2(x+y)(3x-y)-6y²】÷6y²
(-3ab³)²÷(2分之1a²b³)×2ab³
=18b^3*2ab^3
=36ab^6
=9a^5b^12
原始=(x^2-4xy+4y^2-2(3x^2-y^2+2xy)-6y^2)/6y^2=(-5x^2-8xy)/6y^2