Question

A nya abaikan, itu dari sononya
a.2
b.1
c.0
d.-1
e.-2

tolong dong, perlu nih , dengan cara yang mudah dipahami yah

Answer 1

Misalkan
²log 6 = x
²log 3 = y
²log 18 = ²log 6 +² log 3 = x + y
maka 
x² - y³/ (x +y) = (x+y)(x-y)/ (x+y) 
= x-y
= ²log 6 -²log 3 
= ²log (6/3) = ²log 2 = 1

Answer 2

(² log²6 - ²log²3) / ²log18
= (²log6 + ²log3)(²log6 - ²log3) / ²log18
= ²log(6 . 3) ²log(6/3) / ²log18
= ² log 18 . ²log2 / ²log18
= ²log2
= 1