(-2)的2n次方×(-2的n次方) (n是正整数)

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(-2)的2n次方×(-2的n次方) (n是正整数)

(-2)的2n次方×(-2的n次方) (n是正整数)
(-2)的2n次方×(-2的n次方) (n是正整数)

(-2)的2n次方×(-2的n次方) (n是正整数)
(-2)的2n次方×(-2的n次方)
=2的2n次方×(-2的n次方)
=-2的3n次方

=2的2n次方×(-2的n次方)
=-2的3n次方