Jika x log 625=4 dan 8 log y=0 maka x-y=

Bab Logaritma
Matematika SMA Kelas X

ˣlog 625 = 4
x⁴ = 625
x⁴ = 5⁴
x = 5

⁸log y = 0
y = 8⁰
y = 1

x – y = 5 – 1
        = 4