作业帮(2xy)^2(-1/3x^2y)^3/(1/3xy)^2
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(2xy)^2(-1/3x^2y)^3/(1/3xy)^2
(2xy)^2(-1/3x^2y)^3/(1/3xy)^2
(2xy)^2(-1/3x^2y)^3/(1/3xy)^2
原式= - 4x²y² × (1/3) × x^6 y^3 ÷ (x²y²)
= - (4/3)× x²y² × x^4 y
=- (4/3)x^6 y³
=4x²y²×(-1/27x的6次方y³)/(1/9x²y²)
=-4x的6次方y³/3
(2xy)^2(-1/3x^2y)^3/(1/3xy)^2
=4x^2y^2*(-1/27x^6y^3)/(1/9x^2y^2)
=4*(-1/27x^6y^3)/(1/9)
=4*(-1/27x^6y^3)*9
=-4/3*x^6y^3
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