Jawabanmu

2014-09-12T16:48:15+07:00
4log7 x 5log8 x 7log25 =
4log7 x 7log5² x 5log8 =


2 . 4log8 = 2 . 2² log 2³ = 2 . 3/2 =3


1 1 1
2014-09-12T16:55:40+07:00
4log7 x 5log8 x 7 log25
=log 7/log4 x log8/log5 x log 25/log 7
=log7/log2² x log5/log2³ x log5²/log7
=² x ³ x ²
=12