-(3ab)×(-4b^2)和(2x^2y)^3×(-4xy^2)咋算

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-(3ab)×(-4b^2)和(2x^2y)^3×(-4xy^2)咋算-(3ab)×(-4b^2)和(2x^2y)^3×(-4xy^2)咋算-(3ab)×(-4b^2)和(2x^2y)^3×(-4xy

-(3ab)×(-4b^2)和(2x^2y)^3×(-4xy^2)咋算
-(3ab)×(-4b^2)和(2x^2y)^3×(-4xy^2)咋算

-(3ab)×(-4b^2)和(2x^2y)^3×(-4xy^2)咋算
-(3ab)×(-4b^2)=12ab^3
(2x^2y)^3×(-4xy^2)=-32x^3y^3

-(3ab)×(-4b^2)
=3abX4b^2
=12ab立方
(2x^2y)^3×(-4xy^2)
=-(2x^2y)^3×4xy^2
=-8x^6y^3X4xy^2
=-32x^7y^5

-(3ab)×(-4b^2)
=12ab^3
(2x^2y)^3×(-4xy^2)
=8x^6y^3×(-4xy^2)
=-32x^7y^5

-(3ab)×(-4b^2)=3abX4b^2=12ab立方
(2x^2y)^3×(-4xy^2)=-(2x^2y)^3×4xy^2=-8x^6y^3X4xy^2=-32x^7y^5