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phineasdroid
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
1. A= $1,6^2-(1,24^2+24,8x0,024+0.24^2)$
2. B= $(100^2+98^2+96^2+...+2^2)-(99^2+97^2+...+3^2+1^2)$
2. B= $(100^2+98^2+96^2+...+2^2)-(99^2+97^2+...+3^2+1^2)$
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