计算:2x+2y分之3y + x²+xy分之2xy

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计算:2x+2y分之3y+x²+xy分之2xy计算:2x+2y分之3y+x²+xy分之2xy计算:2x+2y分之3y+x²+xy分之2xy2x+2y分之3y+x²

计算:2x+2y分之3y + x²+xy分之2xy
计算:2x+2y分之3y + x²+xy分之2xy

计算:2x+2y分之3y + x²+xy分之2xy
2x+2y分之3y + x²+xy分之2xy
=3y/2(x+y)+2xy/x(x+y)
=3y/2(x+y)+2y/(x+y)
=7y/2(x+y)
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