(-2/7) ^2×343-(-2013/2014) ^0+64×(1/2) ^3

Đáp án:

 `(-\frac{2}{7})^{2}xx343-(-\frac{2013}{2014})^{0}+64xx(\frac{1}{2})^{3}`

`=\frac{4}{49}xx343-1+64xx\frac{1}{8}`

`=\frac{4xx49xx7}{49}-1+\frac{64}{8}`

 `=28-1+8`

`=27+8`

`=35`

CHÚ Ý: `a^{0}=1`