Question

tell me all the propertys in my work like commutative, associative, distributive or combined like terms

Answer 1

your work is

`\begin{gathered} 4a-2(a-1) \\ 4a-2(a)+2(1) \\ 4a-2a+2 \\ 2a+2 \end{gathered}`

the answer here is distributive property of association and combined like terms