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98 x 42 - { 50 x [18 - 2 ^ 3 : 2 + 3 ^ 2] }
= 4116 - { 50 x [18 - 8 : 2 + 9] }
= 4116 - { 50 x [18 - 4 + 9] }
= 4116 - { 50 x 23 }
= 4116 - 1150
= 2966
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(...=16.\left(36-37\right)=16.\left(-1\right)=-16\)
b) \(...=9.3+9.50=9.\left(3+50\right)=9.53=477\)
c) \(...=2.\left(\left(5.16-18\right)+36:18\right)=2.\left(70+2\right)=2.72=144\)
d) \(...=5\left(48:8+44\right)=5\left(6+44\right)=5.50=250\)
e) \(...=20-6=14\)
f) \(...=50+13-2=61\)
a) 16 . 36 - 16 . 37
= 16 . (36 - 37)
= 16 . (-1)
= -16
b) 36 : 4 . 3 + 9 . 50
= 9 . 3 + 9 . 50
= 9 . (3 + 50)
= 9 . 53
= 477
c) 2 . (5 . 16 - 18) + 36 : 18 . 2
= 2 . (80 - 18) + 2 . 2
= 2 . 62 + 2 . 2
= 2 . (62 + 2)
= 2 . 64
= 128
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(50-6x\right).18=2^3.3^2.5\)
\(\left(50-6x\right).18=8.9.5\)
\(\left(50-6x\right).18=72.5\)
\(\left(50-6x\right).18=360\)
\(\left(50-6x\right)=360\div18\)
\(50-6x=20\)
\(6x=50-20\)
\(6x=30\)
\(x=30\div6\)
\(x=5\)
\(\Rightarrow KL:\Rightarrow x=5\)
(50 - 6x) . 18 = 2³.3².5
(50 - 6x). 18 = 8.9.5
(50 - 6x) . 18 = 360
50 - 6x = 360 : 18
50 - 6x = 20
6x = 50 - 20
6x = 30
x = 30 : 6
x = 5
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: (50-6x).18=23. 32.5
(50-6x).18=8.9.5
(50-6x).18=360
50-6x= 360 : 18
50-6x=20
6x=50-20
6x=30
x=30:6
x=5
Giải nè bạn
( 50 - 6x ) . 18 = 8 . 9 . 5
( 50 - 6x ) . 18 = 360
50 - 6x = 360 : 18
50 - 6x = 20
6x = 50 - 20
6x = 30
x = 30 : 6
x = 5
Đây là kết quả nha bạn
![](https://rs.olm.vn/images/avt/0.png?1311)
Đáp án:
(50 – 6x).18 = 23 . 32 . 5
⇔ (50 – 6x).18 = 3680
⇔ 50 – 6x = 3680 : 18 = 1840918409
⇔ 6x = 50 - 1840918409
⇔ 6x = - 1390913909
⇔ x = - 1390913909 : 6 = - 1390913909 . 1616
⇔ x = −69527−69527.
Vậy x = −69527−69527.
98x42-50[(18-2^3):2+3^2]
=98x42-50[(18-8):2+9]
=98x42-50(10:2+9)
=98x42-50(5+9)
=98x42-50x11
=4704-550
=4154