which statement of equality shows two expressions that both correctly represent the model below?

We have 8 units of 1 and 2 units of x.
We can group them as:
[tex]8\cdot1+2x=8+2x=2(4+x)[/tex]as 2 is the common factor.
Answer: the expression that correctly represents the sum of blocks is:
8+2x=2(4+x) [Second option]