问题标题:
计算4x^1/4(-3x^1/4y^1/3)/(-6x^-1/2y-2/3)
问题描述:

计算4x^1/4(-3x^1/4y^1/3)/(-6x^-1/2y-2/3)

梅丹回答:
  4x^1/4(-3x^1/4y^1/3)/(-6x^-1/2y-2/3)   =4*(-3)/(-6)*(x^1/4*x^1/4/x^-1/2)*(y^1/3/y^-2/3)   =2x^[1/4+1/4-(-1/2)]y^[1/3-(-2/3)]   =2xy
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