nilai x dari √8^x-5 = 4^4+2

Bab Eksponensial
Matematika SMP Kelas IX

^ = pangkat

√(8^(x - 5)) = 4^(4 + 2)
8^((x - 5)/2) = 4^6
(2^3)^((x - 5)/2) = (2²)^6
2^((3x - 15)/2) = 2^(2 . 6)
(3x - 15)/2 = 12
3x - 15 = 2 . 12
3x = 24 + 15
x = 39/3
x = 13