1.-(2ab)^3+3ab×a^2b^2 2.(x^2y^3)^4+(-x)^8(y^6)^2 3.(-3a^2)^3×a^3+(-4a)^2a^7-(5a^3)^34.(ab^2)^3-(ab)^3×b^3要有过程

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1.-(2ab)^3+3ab×a^2b^22.(x^2y^3)^4+(-x)^8(y^6)^23.(-3a^2)^3×a^3+(-4a)^2a^7-(5a^3)^34.(ab^2)^3-(ab)^3×

1.-(2ab)^3+3ab×a^2b^2 2.(x^2y^3)^4+(-x)^8(y^6)^2 3.(-3a^2)^3×a^3+(-4a)^2a^7-(5a^3)^34.(ab^2)^3-(ab)^3×b^3要有过程
1.-(2ab)^3+3ab×a^2b^2 2.(x^2y^3)^4+(-x)^8(y^6)^2 3.(-3a^2)^3×a^3+(-4a)^2a^7-(5a^3)^3
4.(ab^2)^3-(ab)^3×b^3要有过程

1.-(2ab)^3+3ab×a^2b^2 2.(x^2y^3)^4+(-x)^8(y^6)^2 3.(-3a^2)^3×a^3+(-4a)^2a^7-(5a^3)^34.(ab^2)^3-(ab)^3×b^3要有过程
1.-(2ab)^3+3ab×a^2b^2
=-8a^3b^3+3a^3b^3
=-5a^3b^3
2.(x^2y^3)^4+(-x)^8(y^6)^2
=x^8y^12+x^8y^12
=2x^8y^12
3.(-3a^2)^3×a^3+(-4a)^2a^7-(5a^3)^3
=-27a^9+16a^9-125a^9
=-136a^9
4.(ab^2)^3-(ab)^3×b^3
=a^3b^6-a^3b^6
=0