(-y²/3x)³÷6x²y^7÷(-1/9x²y)² 计算

(-y²/3x)³÷6x²y^7÷(-1/9x²y)² 计算
(-y²/3x)³÷6x²y^7÷(-1/9x²y)² 计算

(-y²/3x)³÷6x²y^7÷(-1/9x²y)² 计算
(-y²/3x)³÷6x²y^7÷(-1/9x²y)²
=-y^6/3x³÷6x²y^7÷1/81x^4y²
=-1/18x^5y÷1/81x^4y²
=-9/2x^9y^3
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