-12x^3y^4÷(-3x^2y^3)·(-xy)计算
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-12x^3y^4÷(-3x^2y^3)·(-xy)计算
![-12x^3y^4÷(-3x^2y^3)·(-xy)计算](/uploads/image/z/19697557-13-7.jpg?t=-12x%5E3y%5E4%C3%B7%28-3x%5E2y%5E3%29%C2%B7%28-xy%29%E8%AE%A1%E7%AE%97)
-12x^3y^4÷(-3x^2y^3)·(-xy)
=4xy·(-xy)
=-4x²y²
=4xy·(-xy)
=-4x²y²
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