A=17x32+64x83+36x83+68x17

   A=17x32+17x68+64x83+36x83

A=17x(32+68)+83x(64+36)

A=17x100+83x100

A=100x(83+17)

A=100x100

A=10000

A=17x32+64x83+36x83+68x17

  = 17x32+68x17+ 64x83+36x83

  = 17 x (32 +68) +83x(64+36)

  =  17x100 + 83x100

  =      1700 + 8300

  =             10000

*k cho mình nha

17*25 + 17*32 + 83*25 + 83*32

= 17*(25 + 32) + 83*(25 + 32)

= (25 + 32)(17 + 83)

= 57*100

= 5700

\(17.25+17.32+83.25+83.32\)

\(=17.\left(25+32\right)+83.\left(25+32\right)\)

\(=\left(25+32\right)\left(17+83\right)\)

\(=57.100\)

\(=5700\)

17.25 + 17.32 + 83.25 + 83.32 

= 17. ( 25 + 32 ) + 83.( 25 + 32 )

= 17. 57 + 83 . 57 

= 57 . ( 17 + 83 )

= 57 . 100 

= 5700

A=17.32+64.83+36.83+68.17

=>17.(32+68)+83.(64+36)

=>17.100+83.100

=>100.(17+83)

=>100.100

=>10000

Học tốt~

\(\dfrac{14}{17}:\dfrac{17}{32}-\dfrac{14}{17}:\dfrac{17}{15}\\ =\dfrac{14}{17}\times\dfrac{32}{17}-\dfrac{14}{17}\times\dfrac{15}{17}\\ =\dfrac{14}{17}\times\left(\dfrac{32}{17}-\dfrac{15}{17}\right)\\ =\dfrac{14}{17}\times\dfrac{17}{17}\\ =\dfrac{14}{17}\times1\\ =\dfrac{14}{17}\)

\(\Rightarrow\dfrac{14}{17}\times\dfrac{32}{17}-\dfrac{14}{17}\times\dfrac{15}{17}=\dfrac{14}{17}\times\left(\dfrac{32}{17}-\dfrac{15}{17}\right)=\dfrac{14}{17}\times\dfrac{17}{17}=\dfrac{14}{17}\)

14/17.32/17-14/17.15/17

=14/17.(32/17-15/17)

=14/17.1=14/17

14/17 : 17/32 - 14/17 : 17/15

= 14/17 : (17/32 - 17/15)
= 14/17 : (-289/480)
= -960/289

=14/7:(32/15-17/15)

=14/7:1

=14/7

hc tốt

`@` `\text {Ans}`

`\downarrow`

`2023 \times 14 + 2023 \times 83+97`

`= 2023 \times (14+83) + 97`

`= 2023 \times 97 + 97`

`= 196231 +97`

`= 196328`

`78 \times 31+78 \times 24+78 \times 17+78 \times 22 \times 72`

`= 78 \times (31+24+17+22 \times 72)`

`= 78 \times (31+24+17+1584)`

`= 78 \times 1656`

`= 129168`

`371 \times 69+371 \times 14+629 \times 83`

`= 371 \times (69+14) + 629 \times 83`

`= 371 \times 83 + 629 \times 83`

`= 83 \times (371+629)`

`= 83 \times 1000`

`= 83000`

`91 \times 51+49 \times 163-49 \times 72`

`= 91 \times 51 + 49 \times (163-72)`

`= 91 \times 51+49 \times 91`

`= 91 \times (51+49)`

`= 91 \times 100`

`= 9100`

`3 \times 12 \times 17 + 4 \times 9 \times 81 + 2 \times 6 \times 6`

`= 9 \times 4 \times 17 + 4 \times 9 \times 81 + 4 \times 9 \times 2`

`= 9 \times 4 \times (17+81+2)`

`= 36 \times 100` 

`= 3600`

`42 \times 17 + 58 \times 83 \times 42 \times 83 + 42 \times 83 + 17`

`= 17 \times (42+58) + 42 \times 83 \times (58 \times 83 +1)`

`= 17 \times 100 + 3486 \times 4815`

`= 1700 + 16785090`

`= 16786790`

a) 135 - ( x + 32 ) = 80

x + 32 = 135 - 80

x + 32 = 55

x = 55 - 32

x = 23

b)( x - 17 ) + 52 = 158

x - 17 = 158 - 52

x - 17 = 106

x = 106 + 17

x = 123

c x : 17 + 83 = 297

x : 17 = 297 - 83

x : 17 = 214

x = 214 x 17 

x = 3638

d) 9052: x - 56  = 17

9052 : x = 17 + 56

9052 : x = 73

x = 9052 : 73

x = \(\frac{1004}{17}\)

a)23

b)123

c)3638

d)1004/17

ai giúp với!!

Hướng dẫn giải:

a.

17 x 543 + 83 x 543

= (17 + 83) x 543

= 100 x 543

= 54300

b.

318 x 963 + 682 x 963

= (318 + 682) x 963

= 1000 x 963

= 963000

a)17x543+83x543

=(17+83)x543

=100x543

=54300

b)318x963+682x963

=(318+682)x963

=1000x963

=963000