Toán 2019 x2018-2017 ________________ 2019+ 2017x 2018 05/07/2021 By Brielle 2019 x2018-2017 ________________ 2019+ 2017x 2018
Đáp án: $1$ Giải thích các bước giải: $\frac{2019. 2018- 2017}{2019 + 2017 . 2018 }$ $=$ $\frac{2017. 2018 + 2 . 2018 – 2017}{2019+ 2017 . 2018}$ $=$ $\frac{2017 . 2018 + 4036 – 2017}{2019 + 2017 . 2018 }$ $=$ $\frac{2017 . 2018 + ( 4036 – 2017)}{2019 + 2017 . 2018}$ $=$ $\frac{2017 . 2018 + 2019}{2019 + 2017 . 2018}$ $= 1$ Học tốt !!! $@Pika$ Trả lời
Đáp án: Giải thích các bước giải: `( 2019 × 2018 – 2017 )/( 2019 + 2017 × 2018 )` `= ( 2017 × 2018 + 2 × 2018 – 2017 )/( 2019 + 2017 × 2018 )` `= ( 2017 × 2018 + 4036 – 2017 )/( 2019 + 2017 × 2018 )` `= ( 2017 × 2018 + ( 4036 – 2017 ))/( 2019 + 2017 × 2018 )` `= ( 2017 × 2018 + 2019 )/( 2019 + 2017 × 2018 )` `= 1` Trả lời
Đáp án:
$1$
Giải thích các bước giải:
$\frac{2019. 2018- 2017}{2019 + 2017 . 2018 }$
$=$ $\frac{2017. 2018 + 2 . 2018 – 2017}{2019+ 2017 . 2018}$
$=$ $\frac{2017 . 2018 + 4036 – 2017}{2019 + 2017 . 2018 }$
$=$ $\frac{2017 . 2018 + ( 4036 – 2017)}{2019 + 2017 . 2018}$
$=$ $\frac{2017 . 2018 + 2019}{2019 + 2017 . 2018}$
$= 1$
Học tốt !!!
$@Pika$
Đáp án:
Giải thích các bước giải:
`( 2019 × 2018 – 2017 )/( 2019 + 2017 × 2018 )`
`= ( 2017 × 2018 + 2 × 2018 – 2017 )/( 2019 + 2017 × 2018 )`
`= ( 2017 × 2018 + 4036 – 2017 )/( 2019 + 2017 × 2018 )`
`= ( 2017 × 2018 + ( 4036 – 2017 ))/( 2019 + 2017 × 2018 )`
`= ( 2017 × 2018 + 2019 )/( 2019 + 2017 × 2018 )`
`= 1`