Jawabanmu

2014-09-10T23:11:41+07:00
2log5 . 7log16 .5log7
= 2log5 . 5log7 . 7log16
= 2log16
= 2pangkat1 log 2pangkat4
= 4/1 2log2
=4
1 1 1
2014-09-10T23:14:13+07:00
²log5 . ⁷log16 . ⁵log7
= ²log5 . ⁷log16 . ⁵log7
= ²log16
= ²log2⁴
= 1×4
= 4