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36 x 532 + 36 x 532 + 532
= ( 36 x 532 ) x 2 + 532
= 38304 + 532
= 38836
36 x 532 + 36 x 532 + 532
= 532 x (36 + 36 +1)
= 532 x 73
= 38836
![](https://rs.olm.vn/images/avt/0.png?1311)
117 x 36 + 117 x 72 - 17 x 72 - 17 x 36
= ( 117 - 17 ) x 36 - ( 117 - 17 ) x 72
= 100 x 36 - 100 x 72
= 100 x ( 36 - 72 )
= 100 x -36
= -3600
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408 x 53 - 5 x 204 - 204
= 408 x 53 - 5 x 204 - 204 x 1
= 408 x 53 - ( 5 - 1 ) x 204
= 408 x 53 - 4 x 204
= 21624 - 816
= 20808
![](https://rs.olm.vn/images/avt/0.png?1311)
(x+40)x25=2000
=> x+40=2000:25
=> x+40=80
=> x=80-40
=> x=40
Vậy x=40
(x-10)x5=100-20x4
=> (x-10)x5=100-80
=> (x-10)x5=20
=> x-10=20:5
=> x-10=4
=> x=4+10
=> x=14
Vậy x=14
x:2x36=540
=> x:2=540:36
=> x:2=15
=> x=15x2
=> x=30
Vậy x=30
(72x135+9x28x15):25-3500:25
= (72x135+135x28):25-3500:25
= 135x(72+28):25-3500:25
= 135x100:25-3500:25
= 13500:25-3500:25
= (13500-3500):25
= 10000:25
= 400
Ai cùng đáp án thì tk và kb vs mk nha !!! Mk cảm ơn nhìu >.<
(x+40) nhân 25= 2000
(x+40)= 2000: 25
x+40= 80
x=80-40
x= 40
(x-10) nhân 5= 100- 20 nhân 4
(x-10) nhân 5= 20
(x-10) =20:5
x-10= 4
x=4+10
x=14
x:2x 36=540
x:2= 540:36
x:2=15
x= 15x 2
x= 30
(72x 135+ 9x 28x 15) : 25- 3500: 25
(72x 135+ 135x 28): 25- 3500:25
((72+28) x135): 25-3500: 25
100x 135: 25- 3500:25
13500: 25- 3500: 25
( 13500-3500) : 25
10000: 25
400
nha bn
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
x + 36 - 25 = 11
x + 11 = 11
x = 11 - 11
x = 0
cho mình nha !! A - ri - ga - to nhìu
![](https://rs.olm.vn/images/avt/0.png?1311)
a: \(=68\cdot72\cdot49\cdot\left[324-324\right]=0\)
b: \(=\left(1250-1250\right)\cdot\left(1+...+100\right)=0\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) ( 36 x 28 + 36 x 45 ) : 73
= 36 x (28 + 45 ):73
=36 x 73 :73
= 36 x (73 : 73)
= 36 x 1
= 36
b) ( 98 x 17 - 26 x 17 ) : 72
= 17 x (98-17):72
= 17 x 72 :72
=17 x (72 :72)
= 17 x 1
= 17
a) ( 36 x 28 + 36 x 45 ) : 73 = 36
b) ( 98 x 17 - 26 x 17 ) : 72 = 17
36 x 5 + 72 - 36 x 4 + 36 x 7 = 252 - 252 - 252 = 0
36x5+72x5-36x5+36x5
=36x(5+72-36+36)
=36x77
=2772