(1+0.21+0.32)*(0.21+0.32+0.43)-(1+0.21+0.32+0.43)*(0.21+0.32

问题描述:

(1+0.21+0.32)*(0.21+0.32+0.43)-(1+0.21+0.32+0.43)*(0.21+0.32)要怎么简算,
1个回答 分类:数学 2014-12-11

问题解答:

我来补答
(1+0.21+0.32)*(0.21+0.32+0.43)-(1+0.21+0.32+0.43)*(0.21+0.32)=(1)*(0.21+0.32+0.43)+(0.21+0.32)*(0.21+0.32+0.43)-(1)*(0.21+0.32)-(0.21+0.32+0.43)*(0.21+0.32)=0.43
 
 
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