Final Answer:
5(9c + 2d)
In-depth explanation:
We're asked to simplify the expression 45c + 10d using the distributive property. However, it looks like the 5 has already been distributed to both terms, so we're going to use the reverse of the distributive property, i.e., factoring. We'll factor the expression 45c + 10d.
So what I'm going to do is I'm going to divide both terms by 5. I get 9c + 2d.
I put the 5 (the GCF of this binomial) outside the parentheses:
5(9c + 2d)