Question

Serena is writing an expression that is equivalent to 12ab - 6b, but she has not completed it.

Answer 1

Answer:

a

Step-by-step explanation:

Answer 2

Answer: The correct expression is (A) 6b.

Step-by-step explanation:  Given that Serena is writing an expression  that is equivalent to (12ab - 6b), but she has not completed it.

The incomplete expression is ?(2a - 1).

We are to find the missing term from the above incomplete expression.

We have

$12ab-6b=6b(2a-1).$

Thus, the complete expression is 6b(2a - 1).

Option (A) is correct.