计算:(1) x+2y+(4y^2/x-2y
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计算:(1)x+2y+(4y^2/x-2y计算:(1)x+2y+(4y^2/x-2y计算:(1)x+2y+(4y^2/x-2y化简还是求值
计算:(1) x+2y+(4y^2/x-2y
计算:(1) x+2y+(4y^2/x-2y
计算:(1) x+2y+(4y^2/x-2y
化简还是求值
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