2/3x^4y^8z^3-(-xy)^3(x^2y^4z^3)^2/(-1/2xyz)^3

问题描述:

2/3x^4y^8z^3-(-xy)^3(x^2y^4z^3)^2/(-1/2xyz)^3

原式=2/3x^4y^8z^3 + x³y³(x^4 y^8 z^6)÷[(-1/8)x³y³z³]=2/3x^4y^8z^3 - 8x³y³(xy^5 z^3)=2/3x^4y^8z^3 - 8x^4 y^8 z^3=(-22/3)x^4y^8z^3