(3x^-1乘y^-2)²乘(x²y²)³/(3xy³)^-2
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(3x^-1乘y^-2)²乘(x²y²)³/(3xy³)^-2(3x^-1乘y^-2)²乘(x²y²)³/(3
(3x^-1乘y^-2)²乘(x²y²)³/(3xy³)^-2
(3x^-1乘y^-2)²乘(x²y²)³/(3xy³)^-2
(3x^-1乘y^-2)²乘(x²y²)³/(3xy³)^-2
(3x^-1乘y^-2)²乘(x²y²)³/(3xy³)^-2
=9x^(-2)y^(-4) * x^6 * y^6 * 9x^2 * y^6
=81x^6y^8