Toán 1367 × 139 × (18^2 – 15^2) – 1268 × 13^8 × 13^4 ÷ 13^10 11/07/2021 By Genesis 1367 × 139 × (18^2 – 15^2) – 1268 × 13^8 × 13^4 ÷ 13^10
`1367 × 139 × (18^2 – 15^2) – 1268 × 13^8 × 13^4 ÷ 13^10` `=1367 × 139 × (324 – 225) – 1268 × 13^8 × 13^4 ÷ 13^10` `=1367 × 139 × (324 – 225) – 1268 × 13^12 ÷ 13^10` `=1367 × 139 × (324 – 225) – 1268 × 13^2` `= 1367 × 139 ×99 – 1268 × 13^2` `= 1367 × 139 × 99 – 1268 × 13^2` ` = 18811287 – 1268 × 169` ` =18811287 -214292` ` = 18596995` Trả lời
Đáp án: `18596995` Giải thích các bước giải: `1367×139×(18^2-15^2)-1268×13^8×13^4:13^10` `=1367×139×(324-225)-1268×13^{8+4-10}` `=1367×139×99-1268×13^2` `=1367×139×99-1268×169` `=18811287-214292` `=18596995` Trả lời
`1367 × 139 × (18^2 – 15^2) – 1268 × 13^8 × 13^4 ÷ 13^10`
`=1367 × 139 × (324 – 225) – 1268 × 13^8 × 13^4 ÷ 13^10`
`=1367 × 139 × (324 – 225) – 1268 × 13^12 ÷ 13^10`
`=1367 × 139 × (324 – 225) – 1268 × 13^2`
`= 1367 × 139 ×99 – 1268 × 13^2`
`= 1367 × 139 × 99 – 1268 × 13^2`
` = 18811287 – 1268 × 169`
` =18811287 -214292`
` = 18596995`
Đáp án:
`18596995`
Giải thích các bước giải:
`1367×139×(18^2-15^2)-1268×13^8×13^4:13^10`
`=1367×139×(324-225)-1268×13^{8+4-10}`
`=1367×139×99-1268×13^2`
`=1367×139×99-1268×169`
`=18811287-214292`
`=18596995`