(3x³y²)³÷(6x²y)²-三分之一(xy)³×(二分之一x²y)其中x=-4,y=-1/2
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![(3x³y²)³÷(6x²y)²-三分之一(xy)³×(二分之一x²y)其中x=-4,y=-1/2](/uploads/image/z/1860025-49-5.jpg?t=%283x%26%23179%3By%26%23178%3B%29%26%23179%3B%C3%B7%286x%26%23178%3By%29%26%23178%3B-%E4%B8%89%E5%88%86%E4%B9%8B%E4%B8%80%28xy%29%26%23179%3B%C3%97%28%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80x%26%23178%3By%29%E5%85%B6%E4%B8%ADx%3D-4%2Cy%3D-1%2F2)
(3x³y²)³÷(6x²y)²-三分之一(xy)³×(二分之一x²y)其中x=-4,y=-1/2
(3x³y²)³÷(6x²y)²-三分之一(xy)³×(二分之一x²y)其中x=-4,y=-1/2
(3x³y²)³÷(6x²y)²-三分之一(xy)³×(二分之一x²y)其中x=-4,y=-1/2
(3x³y²)³÷(6x²y)²-三分之一(xy)³×(二分之一x²y)
=27x^9y^6÷36x^4y^2-1/3x³y³x1/2x²y
=3/4x^5y^4-1/6x^5y^4
=7/12x^5y^4
=7/12x(-4)^5x(-1/2)^4
=-7/12x4x4^4x(1/2)^4
=-7/3x(4x1/2)^4
=-7/3x2^4
=-7/3x16
=-112/3