²log 6 = a + 2 maka nilai 27 log 16 =

2log 6 = a + 2
2log (2x3) = a + 2
2log2 + 2log3 = a + 2
1 + 2log3 = a + 2
2log3 = a + 2 -1 = a +1

3log2 = 1/(a+1)

27log16=3^3log2^4
 =4/3 3log2
 =4/3 x 1/(a+1)
 =4/3(a+1)
 =4/(3a+3)