计算1/2x-2(x-1/3y^2)+(-3/2x+1/3y^2)
2个回答
1/2x-2(x-1/3y^2)+(-3/2x+1/3y^2)
=1/2x-2x+2/3y^2-3/2x+1/3y^2
=(2/3y^2+1/3y^2)+(1/2x-3/2x+2x)
=y^2+X
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