-1-[2-(1-3分之1乘以0.5)乘以(3的平方-3) ]

问题描述:

-1-[2-(1-3分之1乘以0.5)乘以(3的平方-3) ]

等于二.怎么算的-1-[2-(1-3/1×0.5)×(3的平方-3)]=-1-[2-(1-6/1)×(9-3)]=-1-[2-(6/5×6)]=-1-(2-5)=-1-(-3)=-1+3=2