Question

Question #ae9f5

Answer 1

It would be `18a+(-6b)`

Explanation:

Let's combine like terms.

To do so, we rearrange the terms.
`8a+12a-2a-2b-4b`

Now, we can only combine the terms with the same variable raised to the same power.

Therefore, we can only combine `8a,12a,-2a` and `-2b,-4b`

We now have: `8a+12a-2a-2b-4b=>18a-6b`

Which can be expressed as `18a+(-6b)`