Answer: 8m - 10n
Step-by-step explanation:
Answer:
28m-10n
start by multiplying 4 by (8m-7n) and 6 by (3n-4m)
This will then give you 32m-28n and 18n-24m
Then, add the two answers together
32m-28n+18n-4m
This will give you your final answer of: 28m-10n
