Đinh Công Hiệp
Giới thiệu về bản thân
( 2x - 1 ) \(^4\) = 16
=> ( 2x - 1 ) \(^4\) = 2 \(^4\)
=> 2x - 1 = 2 \(^{4:4}\)
=> 2x - 1 = 2
=> 2x = 2 + 1
=> 2x = 3
=> x = 3 : 2
=> x = 1,5
10 - 1 = 10000000000 - 1 = 9999999999 : 9 = 1111111111
10 + 8 = 100000000000000000000000000000000 + 8 = 10000000000000000000000000000000008 :9 = 11111111111111111111111111111112 ;10000000000000000000000000000000008 thì 8: cho 2 = 4
còn chia hết cho 9 thì chia hết cho 3
10\(^{10}\) - 1 = 10000000000 - 1 = 9999999999 : 9 = 1111111111
10\(^{33}\) + 8 = 100000000000000000000000000000000 + 8 = 10000000000000000000000000000000008 :9 = 11111111111111111111111111111112
107 - { 38 + [ 7 . 9 - 24 : 6 + 2\(^3\) ] } : 15
107 - { 38 + [ 63 - 4 +8 ] } : 15
107 - { 38 + [ 59 + 8 ] } : 15
107 - { 38 + 67 } : 15
107 - 105 : 15
107- 7 = 100
abcd5=a.10000+b.1000+c.100+d.10+5
0,75