Question

Question is in the photo. I need help with (a) please

Answer 1

(a) Given:

The expressions are:

`\begin{gathered} -8a+6b \\ +4a-4b \end{gathered}`

To add the given expressions:

ADDITION is as follows:

Thus, we have

`\begin{gathered} -8a+6b+(+4a-4b)=(-8+4)a+(6-4)b \\ -8a+6b+(+4a-4b)=-4a+2b \end{gathered}`

The answer is:

`-4a+2b`