Answer:
2+2b
Explanation:
To expand the given expression, we divide each term in the parenthesis by the number outside. For the final step, we sum the results.
Multiplying each term by 2 gives
[tex]\begin{gathered} 2\cdot1 \\ 2\cdot b \end{gathered}[/tex]adding the two results gives
[tex]2\cdot1+2\cdot b[/tex]which can be written as
[tex]2+2b\text{.}[/tex]Which is our answer!