[(x+y)乘(x-y)]乘3x等于多少
问题描述:
[(x+y)乘(x-y)]乘3x等于多少
[3(x+y)+2(x-y)]3x化简后结果是什么
答
5X-1Y
[(x+y)乘(x-y)]乘3x等于多少
[3(x+y)+2(x-y)]3x化简后结果是什么
5X-1Y