(-ab^2)^2(-a^4b^3)^3(-3a^2b)

问题描述:

(-ab^2)^2(-a^4b^3)^3(-3a^2b)

=a^2b^4 ×(-a^12b^9) (-3a^2b)
=3a^16b^14= = 错了 是(-ab^2)^2(-a^4b^3)^3(-a^2b)=a^2b^4 ×(-a^12b^9) (-a^2b)=a^16b^14