2^100加(-2)^101 等于
问题描述:
2^100加(-2)^101 等于
答
(-2)^101 =-(2)^101 =-2^100*2
2^100+(-2)^101
=2^100-(2)^101
=2^100-2^100*2
=2^100*(1-2)
=-2^100