\(5^{x-1}-25=600\)
\(x=5\)
\(=>5^{5-1}-25=600\)
Ban lam ro ra cho minh co duoc khong? Cam on
5x-1 - 25 = 600
5x : 51 - 25 = 600
5x : 51 = 600 + 25
5x : 51 = 625
5x = 625 . 5
5x = 3125
5x = 55
x = 5
5x-1-25= 600
5x-1 = 600+25
5x-1 = 625
5x-1 = 54
=> x-1= 4
x = 4+1
x = 5 nha bạn!