计算 (-2x)(x-1)-(x-2)(x+3) [4(a-b)^m-1]*[-3(a-b)^2m]

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计算 (-2x)(x-1)-(x-2)(x+3) [4(a-b)^m-1]*[-3(a-b)^2m]
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计算 (-2x)(x-1)-(x-2)(x+3) [4(a-b)^m-1]*[-3(a-b)^2m]
计算 (-2x)(x-1)-(x-2)(x+3) [4(a-b)^m-1]*[-3(a-b)^2m]

计算 (-2x)(x-1)-(x-2)(x+3) [4(a-b)^m-1]*[-3(a-b)^2m]
(-2x)(x-1)-(x-2)(x+3)
=-2x²+2x-(x²+x-6)
=-2x²+2x-x²-x+6
=-3x²+x+6
[4(a-b)^m-1]*[-3(a-b)^2m]
=-12(a-b)^(m-1+2m)
=-12(a-b)^(3m-1)