x^2 + 4x + 3 + 1 = (x + 2)^2
So 1 need to be added.
I think it’s 3 times because 2*3=6 and 4*3=12 and 6*3=18
Answer:

Step-by-step explanation:
Changing Bases to Evaluate Logarithms

Apply change of base formula'

log term should be the numerator and denominator is the log base


64 is 4^3 and 16 is 4^2

Move the exponent before log

top and bottom has same log so cancel it out

I believe the answer to your question is b.