(-2-i)(3-2i)(-1+3i)等于5-25i对吗?

问题描述:

(-2-i)(3-2i)(-1+3i)等于5-25i对吗?

(-2-i)(3-2i)(-1+3i)=(-6+4i-3i+2i²)(-1+3i)
=(-8+i)(-1+3i)
=8-24i-i+3i²
=5-25i /说明 i²=-1
你计算的结果是对的