mn ui lm ơn jup e ik mak

please please please

1 > 33 ( 17 - 5 ) - 17 ( 33 - 5 )

    = 33 . 17 - 33.5 - 17.33 + 17.5

    =-33.5 + 17.5

    = 5 ( - 33 + 17 )

    = 5 . ( -16 )

    = - 80

2 >  | -100 | + ( 135 - 58 ) - ( 142 - 856 )

    = 100 + 135 - 58 - 142 + 856

   Bạn tự làm nha , đừng công thức chuyển vế thôi

# chúc bạn học tốt ạ #

-5/17 . 31/33 + (-5/17) . 33/2 + 9/17

= -5/17.(31/33 + 33/2) + 9/17

= -5/17 . 1151/66 + 9/17

= -5755/1122 + 9/17

= -5161/1122

f) 33.( 139 – 17) – 39.( 133 –17)

\(=33.139-33.17-39.133+39.17\)

\(=33.\left(100+39\right)-39.\left(100+33\right)+17.\left(-33+39\right)\)

\(=33.100+33.39-39.100-39.33+17.6\)

\(=100.\left(33-39\right)+17.6\)

\(=100.\left(-6\right)+17.6\)

\(=\left(-6\right).\left(100-17\right)\)

\(=\left(-6\right).83=498\)

ok nha bn

\(\frac{17}{33}.\frac{2}{5}+\frac{3}{5}.\frac{17}{33}-\frac{17}{33}\)

\(=\frac{17}{33}\times\frac{2}{5}+\frac{3}{5}\times\frac{17}{33}-\frac{17}{33}\times1\)

\(=\frac{17}{33}\times\left(\frac{2}{5}+\frac{3}{5}-1\right)\)

\(=\frac{17}{33}\times\left(1-1\right)\)

\(=\frac{17}{33}\times0=\frac{17}{33}\)

 Làm he LÀM đi bạ nó lại  cồn bỏ bỏ

\(\frac{5}{17}.\frac{16}{33}+\frac{5}{33}.\frac{20}{17}-\frac{2}{17}.\frac{5}{33}\)

\(=\frac{5}{17}.\frac{16}{33}+\frac{5}{17}.\frac{20}{33}-\frac{5}{17}.\frac{2}{33}\)

\(=\frac{5}{17}.\left(\frac{16}{33}+\frac{20}{33}-\frac{2}{33}\right)\)

\(=\frac{5}{17}.\frac{34}{33}\)

\(=\frac{10}{33}\)

Chúc bạn học tốt !!! 

33.(17 – 5) – 17.(33 -5)

= 33. 17 – 33.5 – 17.33 + 17.5

= (33.17 – 33. 17) + ( 17.5 – 33.5)

= 0 + 5.(17- 33)

= 5.(- 16) = -80

a) 18.17 - 3.6.7

= 18.17-18.7

=18.( 17 - 7 )

= 18 . 10

= 180

b) 54 - 6.( 17 + 9) 

= 6.9 - 6 . 26

= 6.( 9 - 26 ) 

= 6 . ( - 17 ) 

= -102

c) 33.(17 - 5 ) - 17.(33-5)

= 33.17 - 33 .3  - 17.33 -  17 . 5 

= 33.17 + ( -33 ) .3 + ( - 17) .33 + ( -17) .5

= 33.17 + ( - 17) . 33 + 33 . ( - 3) + ( -17 ) .5

= 33. [ 17 + ( -17 ) + ( - 3 )] + (-17) . 5

= 33 . ( - 3 ) + ( -17 ) .5

= -99 + ( - 85)

= -184

a) 18 . 17 - 3 . 6 . 7                   b) 54 - 6 . ( 17 + 9 )                             

= 306      - 126                           = 48  . 26                                            

= 180                                        = 1248

,mk giúp đc từng đó nha

= 33.17 - 33.5 - 17.33 + 17.5

= 17.5 - 33.5

= 5.(17 - 33)

= 5.(-16) 

= -80

33.(17-50-17.(33-5) = -15312