(-1/4a³b)(-1/2a²b-1/3ab+1)计算

问题描述:

(-1/4a³b)(-1/2a²b-1/3ab+1)计算

(-1/4a³b)(-1/2a²b-1/3ab+1)
=1/8a5b2+1/12a4b2-1/4a³b