Question

Which expression can you simplify by combining like terms?

Answer 1

Answer:

The correct option is A.

Step-by-step explanation:

If the degree and variables of two terms are same, then they are called like terms.

In option A.

The given expression is  

$12b^2+4ab-3ba-6$

Here, 4ab and -3ab are like terms because both have same variables a and b with degree 1.

By combining like terms we get

$12b^2+(4ab-3ab)-6$

$12b^2+ab-6$

In options B, C and D, there are no like terms, So only the expression $12b^2+4ab-3ba-6$ we can simplify by combining like terms.

Therefore the correct option is A.