计算:[-1/4a^(3-n)b^(m-1)]^2·(4a^(3+n)b)^2
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计算:[-1/4a^(3-n)b^(m-1)]^2·(4a^(3+n)b)^2
计算:[-1/4a^(3-n)b^(m-1)]^2·(4a^(3+n)b)^2
计算:[-1/4a^(3-n)b^(m-1)]^2·(4a^(3+n)b)^2
计算:[-1/4a^(3-n)b^(m-1)]^2·(4a^(3+n)b)^2
=[-1/4a^(3-n)b^(m-1) * 4a^(3+n)b ]^2
=[a^(3-n+3+n)b^(m-1+1) ]^2
=(a^6*b^m)²
=a^12 * b^(2m)