a) n = 2
b) n = 2
c) n = 5
k cho mk nha
@, n=2
b, n=2
c, n=5
a: n= 2
b: n= 2
c: n = 5
(3 x n + 2)3= 512
(3 x n + 2)3= 83
3 x n + 2 = 8
3 x n = 8 - 2 = 6
n = 6 : 3
=> n = 2
(2n+1)3 = 125
(2n + 1)3= 53
2n + 1 = 5
2n = 5-1 = 4
n = 4 : 2
=> n = 2
n5 : n3 = 25
=> n2= 25
n2= 52
=> n = 5
a n=2
b n=2
c n=5
k cho mình nha