Logaritma kelas 10. Tolong dikasih caranya yg jelas ya. Saya masih bingung soalnya

A.
1) 7log 49= 2 krn 7²= 49
2) 3log 81=4 krn 3⁴=81
3) 4log32=3 krn 4³=32
4log4 1
4) 64log4=——— = ——
4log64 3
5) 25log√5= 25log5½
= 1/2× 25log5
=1/2×1/2
=1/4
6) 2log2√2= 2log2.2½
= 1/2×2log2.2
=1/2×2log4
= 1/2×2
=1
B.
7) log60+log5-log3
= log60×5/3
=log300/3
=log100
=2 krn 10²=100 (apabila tdk tertulis basisnya maka berarti 10log...)
8) log16-log2+log125
= log16/2+log125
=log8+log125
= log8×125
=log1000
= 3 krn 10³=1000
9) ²log8+²log16-²log4
=3+4-2
=5
atau
=²log8×16/4
=²log128/4
=²log32
=5

C.
10) 5log25=2
11) 6log9+2.6log2-2.6log36
=6log9+6log2²-2.2
=(6log9+6log4)-4
=(6log9.4)-4
=(6log36)-4
=2-4
=-2
12) 3loga⁴b6
= 3loga⁴ + 3logb^6
=4.3loga + 6.3logb
=10.3logab

semoga bermanfaat
maaf jika jawabannya ada yg salah!!!