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1326 hay 326 hả bạn, bạn xem lại nhé.

1326 x 728 + 327 x 272

= (1000 + 327 - 1) x 728 + 327 x 272

= 1000 x 728 + 327 x 728 - 728 + 327 x 272

= 1000 x 728 + 327 x (728 + 272) - 728

= 1000 x 728 + 327 x 1000  - 728

= 1000x (728 + 327) - 728

= 1000 x 1055 - 728

= 1055000 - 728

= 1054272

326 x 728 + 327 x 272

= 326 x 728 + 326 x 272 + 272

= 326 x ( 728 +272 ) + 272

= 326 x 1000 + 272

= 326000 + 272

= 326272

326.728+327.272=237328+101184

                            =338512

k mk nha!

Đ/S : 338512

k mk nha ^_^

326 x 728 + 327 x 272

= 326 x 728 + 326 x 272 + 272

= 326 x (728 + 272) + 272

= 326 x 1000 + 272

= 326000 + 272

= 326272

đáp số là 326272 đó bạn

326 x 728 + 327 x 272

= 326 x 728 + 326 x 272 + 272

= 326 x ﴾728 + 272﴿ + 272

= 326 x 1000 + 272

= 326000 + 272

= 326272 

  326*728 + 327*272

= 237328 + 88944

= 326272

  { m : 1 - m * 1 } : { m * 2008 + m + 2008 }

= { m -m } :  { m * 2008 + m + 2008 }

= 0 :  { m * 2008 + m + 2008 }

= 0 

326 x 728 + 327 x 272

= 237328  + 88944

= 326272

b2 ={ m - m) : { m x 2008 + m + 2008

     = 0 : { m x 2008 + m + 200 8 }

      = 0

=64642160 nha bạn

326 x 728+ 327 × 272  =

237328+88944=  326272

2008 ×867+ 2009× 133 =

1740936+267197=2008133

nhớ k minh nha

a, 326 x 728 + 327 x 272

= ( 326 + 1 ) x 728 + 327 x 272

= 327 x 728 + 327 x 272 

= 327 x ( 728 + 272 ) 

= 327 x 1000

= 327000

b, 2008 x 867 + 2009 x 133

= ( 2008 + 1 ) x 867 + 2009 x 133

= 2009 x 867 + 2009 x 133

= 2009 x ( 867 + 133 ) 

= 2009 x 1000

= 2009000

322272 nhe em

`@` `\text {Ans}`

`\downarrow`

`a,`

\(\text{326 x 728 + 327 x 272}\)

`= 326 \times 728 + 326 \times 272 + 272`

`= 326 \times (728 + 272) + 272`

`= 326 \times 1000 + 272`

`= 362000 + 272`

`= 362272`

`b,`

\(\text{2008 x 867 + 2009 x 133}\)

`= 2008 \times 867 + 2008 \times 133 + 133`

`= 2008 \times (867 + 133) + 133`

`= 2008 \times 1000 + 133`

`= 2008000 + 133`

`= 2008133`

`c,`

\(\text{1235 x 6789 x (630 - 315 x 2 )}\)

`= 1235 \times 6789 \times (630 - 630)`

`= 1235 \times 6789 \times 0`

`= 0`

`d,`

\((m \div 1 - m \times 1 ) \div ( m \times 2008 + m + 2008)\)

`= (m - m) \div (m \times 2008 + m + 2008)`

`= 0 \div (m \times 2008 + m + 2008)`

`= 0`

a: =326*728+326*272+272

=326000+272

=326272

c: \(=1235\cdot6789\cdot\left(630-630\right)=0\)

d: \(=\left(m-m\right):\left(20009m+2008\right)=0\)