(-67).(1 – 301 ) – 301. 67 = (-67).1 + 67.301 – 67. 301 = -67

\(\left(-67\right).\left(1-301\right)-301.67\)

\(=-67-\left(-67\right).301-301.67\)

\(=-67+67.301-301.67\)

\(=-67\)

mk k biet xin loi ban nha!!!!!

mk k biet xin loi ban nha!!!!!

mk k biet xin loi ban nha!!!!!

mk k biet xin loi ban nha!!!!!

Chuyển dấu " - " ở -301 qua cho 67

Ta có:

     = (-67) . ( 1- 301 ) + 301 . (-67)

     = (-67) . ( 1 - 301 + 301 )

     = (-67) . ( 1 + 0 )

     = (-67) . 1

     = -67

Nói rõ hơn: Chuyển dấu của thằng 301 thứ 2 ấy nhé :3

( -4 ) . 3 . ( -125 ) . 25 . ( -8 )

= [ -4 . 25 ] . [ -125 . ( -8 ) ] . 3 

=     -100     .    1000       .      3 

= -100 000       .            3 

=       -300 000

( -67 ) . ( 1 - 301 ) - 301 . 67 

= ( -67 ) . 1 - 301 - 301 . 67 

=  -67    .       1 

=      -67 

a, ( -4 ) . ( +3 ) . ( -125 ) . ( +25 ) . ( -8 )

= ( - 4 ) . ( + 25 ) . ( - 125 ) . ( - 8 ) . ( + 3 )

= 100 . 1000 . 3

= 100000 . 3

= 300000

b, ( -67 ) . ( 1 - 301 ) - 301 . 67

= ( - 67 ) .  1 + 67 . 301 - 301 . 67 

= -67 . 1

= - 67

a, ( -4 ) . ( +3 ) . ( -125 ) . ( +25 ) . ( -8 )

=>300000

b, ( -67 ) . ( 1 - 301 ) - 301 . 67

=>-67

-67.(1 - 301) - 301.67

= -67.(-300) - 301.67

= 67.300 - 301.67

= 67(300 - 301)

= 67.(-1)

= -67

\(\left(-67\right)\left(1-301\right)-301\cdot67\)

\(=\left(-67\right)\left(-300\right)-301\cdot67\)

\(=67\cdot300-301\cdot67\)

\(=67\left(300-301\right)\)

\(=67\cdot\left(-1\right)\)

\(=-67\)

 (-4).(+3).(-125).(-8)=-12000

b) (-67).(1-301)-301.67= -67

a)   \(\left(-67\right).\left(2-301\right)-301.67\)

\(=-67.2+67.301-301.67\)

\(=-67.2=134\)

b)   \(35.99+19\left(-7\right).5\)

\(=35.99-35.19\)

\(=35.\left(99-19\right)\)

\(=35.80=2800\)

câu a. bạn sai rồi

-67.2=-134

chứ hk phải là 134

`a)-67.(1-301)-301.67`

`=67.(-1).(-300)-301.67`

`=67.300-301.67`

`=67.(300-301)`

`=67.(-1)`

`=-67`

__

`b)(-3879-3879-3879-3879).(-25)`

`=3879.(-4).(-25)`

`=3879.100`

`=387900`

$a)-67.(1-301)-301.67$

$=67.[-(1-301)-301]$

$=67.(-1+301-301)$

$=67.(-1)$

$=-67$

$b)(-3879-3879-3879-3879).(-25)$

$=3879.(-4).(-25)$

$=3879.100$

$=387900$