720:[ 41-(2x-5)]=2mu 3 . 5
720:((5-2x)-(-41))=2^3*5
720 : [(5 - 2x) - (-41)] = 23 . 5
720 : [(5 - 2x) + 41] = 8 . 5
720 : [(5 - 2x) + 41] = 40
(5 - 2x) + 41 = 720 : 40
(5 - 2x) + 41 = 18
5 - 2x = 18 - 41
5 - 2x = -23
2x = 5 - (-23) = 5 + 23
2x = 28
x = 28 : 2 = 14
=> x = 14
720:41-(2x-5)=23*5
720:[41-(2x-5)]=23.5
720:[41-(2x-5)]=23.5
720:[41-(2x-5)]=8.5
720:[41-(2x-5)]=40
41-(2x-5)=720:40
41-(2x-5)=18
2x-5=41-18
2x-5=23
2x=23+5
2x=28
x=28:2
x=14
Vậy x=14
720:[41-(2x-5)]=23.5
720:[41-(2x-5)]=2^3.5
720:[41-2x+5]=40
[41+5-2x]=720:40
46-2x=18
2x=46-18
2x=28
x=14
bai1
5mu3+3mu5
bai2
(x-1)mu3=125
720/(41-(2*x-5))=2mu 3*5
bai3
1 phan 9 * 3 mu 4 * 3 mu n =3 mu 7
(2 mu 2 chia 4)* 2 mu n = 4
bai4
2 * 2mu2 * 2mu3 * 2mu4 *.......*2 mu100
tìm x biết 720 : [ 41- (2x -5) ] = 2^3 .5
720:[41-(2x - 5)]=23.5
720:[41-(2x - 5)]=8.5
720:[41-(2x - 5)]=40
41-(2x - 5)=720:40
41-(2x - 5)=18
2x - 5=41-18
2x - 5=23
2.x=23+5
2.x=28
x=28:2
x=14
( 720:[41-(2x-5)]=23.5
720 : [41 - (2x -5)] = 2^3 * 5
41 - (2x -5) = 18
2x - 5 = 23
2x = 28
x= 14
720:[41-(2x-5)]=23 x 5
720 : [ 41 - ( 2x - 5 ) ] = 23 . 5
720 : [ 41 - ( 2x - 5 ) ] = 8 . 5
720 : [ 41 - ( 2x - 5 ) ] = 40
41 - ( 2x - 5 ) = 720 : 40
41 - ( 2x - 5 ) = 18
2x - 5 = 41 - 18
2x - 5 = 23
2x = 23 + 5
2x = 28
=> x = 28 : 2
=> x = 14
720 : [ 41 - ( 2 x - 5 ) ] = 40
41 - ( 2 x - 5 ) = 720 : 40
41 - ( 2 x - 5 ) = 18
2 x - 5 = 41 - 18
2 x - 5 = 23
2 x = 23 + 5
2 x = 28
x = 28 : 2
x = 14
720:[41-(2x-5)]=23x5
720:[41-(2x-5)=8x5
720:[41-(2x-5)=40
[41-(2x5)=720:40
41-(2x5)=18
(2x-5)=41-18
2x-5=23
2x=23+5
2x=28
x=28:2
x=14
(2x-4).(3-x) 720 : [ 41-(2x-5)]=22.5 15-x=7-(-2)