Question 169199
We can write "logbase2 4" as "log2(4)".
.
You will need to apply "log rules".  You can review them at:
http://www.purplemath.com/modules/logrules.htm
.
log2(4) + log2(27)= log2(x)
log2(4*27)= log2(x)
log2(108)= log2(x)
108 = x