(3分之1xy)²(-12x²y²;)÷(-3分之4x³y)

(3分之1xy)²(-12x²y²;)÷(-3分之4x³y)
(3分之1xy)²(-12x²y²;)÷(-3分之4x³y)

(3分之1xy)²(-12x²y²;)÷(-3分之4x³y)
(3分之1xy)²(-12x²y²)÷(-3分之4x³y)
=1/9x^2y^2×(-12x^2y^2)÷(-4/3x^3y)
=1/9×(-12)×(-3/4)×x^(2+2-3)×y^(2+2-1)
=xy^3

(3分之1xy)²(-12x²y²;)÷(-3分之4x³y)
=1/9*x^2y^2*(-12x²y²)×(-3/4*1/(x^3y))
=1/(x^3y)

原式=[(1/9)x²y²]×[－12x²y²]÷[－(4/3)x³y]
=xy²

(3分之1xy)²(-12x²y²;)÷(-3分之4x³y)
=9分之1x²y²(-12x²y²;)÷(-3分之4x³y)
=xy³