(-1/2ab^2c)^2*(-1/3abc^2)^3*(12a^3b)

问题描述:

(-1/2ab^2c)^2*(-1/3abc^2)^3*(12a^3b)

(-1/2ab^2c)^2*(-1/3abc^2)^3*(12a^3b)
=(1/4a^2b^4c^2)*(-1/27a^3b^3c^6)*(12a^3b)
=-1/9a^2b^6c^8