x^2+(x-2)^2-(2-x)^2+(x-1)^3+(1-x)^3
=x^2+(x-2)^2-(x-2)^2+(x-1)^3-(x-1)^3
=x^2
x^2+(x-2)^2-(2-x)^2+(x-1)^3+(1-x)^3=( )
x^2+(x-2)^2-(2-x)^2+(x-1)^3+(1-x)^3=( )
x^2+(x-2)^2-(2-x)^2+(x-1)^3+(1-x)^3=( )
x^2+(x-2)^2-(2-x)^2+(x-1)^3+(1-x)^3=( )
数学人气:818 ℃时间:2020-08-11 12:43:40
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