The most accurate answer

The expression $6÷2(1+2)$ can be evaluated as follows:

1. Solve the parentheses first:
   $1+2=3$.
   Now the expression becomes:
   $6÷2(3)$.

2. Handle multiplication and division from left to right (according to the order of operations, PEMDAS/BODMAS):

   • First, divide $6÷2=3$.
   • Then, multiply $3\times 3=9$.

Final Answer: 9