How do you factor 10a 5b?

Answer 1

The only common factor of 10a and 5b is a 5. So the factored form will be something like:

5(2a _ b)

assuming the _ is filled in with the proper operation (+ - * / etc.).

If the original expression is 10a + 5b, the answer would be 5(2a + b).

Answer 2

What is the highest common factor of the following numbers:

1. 5b and 10a

2. 10d and 5c

3. 4xy and 12xy