Question 603286
I believe you have a typo in your problem:
Instead of:
log^5 125 + log^5 123
I think you meant:
log^5 125 + log^5 125
.
which is equivalent to:
log^5 (125*125)
log^5 (15625)  (answer a)
.
AND, since:
5^6 = 15625
we can also write:
log^5 (5^6)  (answer d)