Question

Which expression is equivalent to 12a + 8?

4(3a + 2)
4(3a + 8)
6(6a + 2)
6(6a + 8)

Answer 1

4(3a + 2)

Explanation:

apply the rule a(b+c) = ab+ac

Answer 2

4(3a+2)

Explanation:

Since 4 is on the outside of the parenthesis, you have to multiple everything inside of the parenthesis by 4 which would leave you with 12a+8 which is the exact same as the expression in the question