问题 填空题

计算:2x3-2x[x2-2(x-3)]=______.

答案

2x3-2x[x2-2(x-3)]

=2x3-2x[x2-2x+6]

=2x3-2x3+4x2-12x

=4x2-12x.

故答案为:4x2-12x.

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