-2ab·(a²b3ab²-1)怎么做
要过程!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
用乘法分配律
原式
=-2ab*a²b-2ab*3ab²+2ab
=-2a³b²-6a²b³+2ab
热门标签:
要过程!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
用乘法分配律
原式
=-2ab*a²b-2ab*3ab²+2ab
=-2a³b²-6a²b³+2ab