解：图中：-c(c^2)^0.5+|a-b|+[(a+b)^3]^(1/3)-|b+c|=|c|+|a-b|+a+b-|b+c|=c+a-b+a+b-(b+c)=2a-b
=c+(a-b)-(a+b)+(b+c)=c+a-b-a-b+b+c=2c-b
