Question

Which of the following are the factors of 3ab(a + b)?

• A. a and b
• B. 3, a and b
• C. 3, a, b and (a + b)
• D. a, b and (a + b)

Answer 1

The correct option is C 3, a, b and (a + b)

Given, the expression is 3ab(a + b).

The given expression can be factorised as follows :

3ab(a + b) = (3).(a).(b).(a + b)

Hence, the factors of 3ab(a + b) are 3, a, b and (a+b).