问题标题:
初二数学整式计算[4(a-b)^m-1]×[-3(a-b)^2m][-2/3x^2yz]cheng[(-3/4)z^2)]cheng[(1/2)xy^2z]
问题描述:

初二数学整式计算

[4(a-b)^m-1]×[-3(a-b)^2m]

[-2/3x^2yz]cheng[(-3/4)z^2)]cheng[(1/2)xy^2z]

南秋明回答:
  [4(a-b)^m-1]×[-3(a-b)^2m]=-12(a-b)^(3m-1)   [-2/3x^2yz]cheng[(-3/4)z^2)]cheng[(1/2)xy^2z]   =1/4*x^3*y^3*z^4
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