(-274).71+(-274).29
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\(328-\left[x-\left(33.32-29:22\right).2\right]=274\)
\(328-\left[x-\left(1056-\frac{29}{22}\right).2\right]=274\)
\(x-2112+\frac{29}{11}=328-274\)
\(x-2112+\frac{29}{11}=54\)
\(x=54+2112-\frac{29}{11}\)
\(x=\frac{23797}{11}\)
vậy \(x=\frac{23797}{11}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 13 15 : 39 25 = 13 15 . 25 39 = 5 9
b) 2 9 : 27 4 = 2 9 . 4 27 = 8 243
c) − 7 8 : ( − 3 ) = − 7 8 . − 1 3 = 7 24
d) − 1 : 11 5 = − 1. 5 11 = − 5 11
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a: =274+184=458
b: =29+132+868+237+163
=1000+400+29
=1429
f: =A*135*137(1001-1001)=0
e: =24*25+24*37+24*38
=24*100=2400
c: =31(98+2)=31*100=3100
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274+325+627+576
=(274+576)+325+627
=(850+325)+627
=1175+627
=1802
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\(2.3^x=10.3^{12}+8.27^4\)
\(2.3^x=10.3^{12}+8.\left(3^3\right)^4\)
\(2.3^x=18.3^{12}\)
\(3^x=9.3^{12}=3^{14}\)
\(x=14\)
2.3ˣ = 10.3¹² + 8.27⁴
2.3ˣ = 10.3¹² + 8.(3³)⁴
2.3ˣ = 10.3¹² + 8.3¹²
2.3ˣ = 3¹².(10 + 8)
2.3ˣ = 3¹².18
3ˣ = 3¹².18 : 2
3ˣ = 3¹² . 9
3ˣ = 3¹² . 3²
3ˣ = 3¹⁴
x = 14
![](https://rs.olm.vn/images/avt/0.png?1311)
1512 = 312.512
274.256 = (33)4.(52)6
274 = 312.512
1512 = 274.256
b. (-274).71+(-274).29
= (-274).(71+29)
= (-274). 100
= -27400
(-274).71+(-274).29
=(-274).(71+29)
=(-274).100
=(-27400)