Question

cứu 

b, 2.3²+24:6.2

c,2.3²-24:(6.2)

Answer 1

`2.3^2 + 24 : 6 . 2`

`=2 . 9+24:6.2`

`=18 + 8`

`=26`

`2.3^2 - 24:(6.2)`

`=2. 9 - 24 : 12`

`=18 - 2`

`=16`

Answer 2

\(b,2.3^2+24:6.2\\=2.9+4.2\\ =18+8=26\)

\(c,2.3^x-24:\left(6.2\right)\\ =2.3^x-24:12\\ =2.3^x-2\\ =2\left(3^x-1\right)\)