Answer:
6^{4} · 4^{4} · b^{3}
Step-by-step explanation:
Collect identical number terms to get the exponent:
6.4⋅6.4⋅6.4⋅6.4⋅b⋅b⋅b
As you can see, there are four "6s", four "4s" and three "b"s
So we got the conclusion the answer is just 6^{4} · 4^{4} · b^{3}
