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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(67-\left[8+7.3^2-24:6+\left(9-7\right)^3\right]:15\)
\(67-\left[8+7.9-4+2^3\right]:15\)
\(67-\left[8+63-4+8\right]:15\)
\(67-\left[71-11\right]:15\)
\(67-60:15\)
\(67-4\)
\(=63\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(500-\left\{5\left[409-\left(2^3\cdot3-21\right)^2+10^3\right]\right\}:15\)
\(=500-\left\{5\left[409-9+1000\right]\right\}:15\)
\(=500-\left\{5\cdot1400\right\}:15\)
\(=500-7000:15\)
\(=500-\dfrac{1400}{3}\)
\(=\dfrac{100}{3}\)
\(67-\left[8+7\cdot3^2-24:6+\left(9-7\right)^2\right]:15\)
\(=67-\left[8+7\cdot9-24:6+4\right]:15\)
\(=67-\left[8+63-4+4\right]:15\)
\(=67-71:15\)
\(=67-\dfrac{71}{15}\)
\(=\dfrac{934}{15}\)
\(PeaGea\)
![](https://rs.olm.vn/images/avt/0.png?1311)
đổi ra thì ta có:
67-[8+7.9-24:6+(9-7)^3]:15
=67-[8+63-4+2^3]:15
=67-[8+63- 4+8]:15
=67-[71-4+8]:15
=67-75:15
=67-5
=62
67 - [ 8 + 7 . 32 - 24 : 6 + ( 9 - 7 )3 ] : 15
= 67 - [ 8 + 7 . 9 - 4 + 23 ] : 15
= 67 - [ 8 + 63 - 4 + 8 ] : 15
= 67-[71-4+8]:15
= 67 - [ 67 + 8 ] : 15
= 67 - 75 : 15
= 67 - 5
= 62
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(67-\left[8+7.3^2-24:6+\left(9-7\right)^3\right]:15\\ =67-\left[8+7.9-4+2^3\right]:15\\ =67-\left[8+63-4+8\right]:15\\ =67-75:15\\ =67-5=62\)
67-[8+7.\(3^2\)-24:6+\(\left(9-7\right)^3\)]:15
=67-[8+63-4+8]:15
=67-75:15
=67-5
=62
67 -[ 8 + 7 x 32 - 24: 6 + (9 - 7 )3] :15
= 67 -[ 8 + 7 . 32 - 24 : 6 + 23 ] : 15
= 67 - [ 8 + 7 . 9 - 24 : 6 + 8 ] : 15
= 67 - [ 71 - 12 ] : 15
= 67 - 59 : 15
= 8 : 15
=> ko thực hiện đc .