Question

Which pair of expressions below are equivalent (the same)?

1. 2x + 2y and 4xy
2. 3(x + 4) and 3x + 12
3. 7x + 6x and 42x
4. 5x + x + x and 6x
Please help it’s a test !

Answer 1

2.

Explanation:

2. because 3(x+4) if we distribute 3 in parenthesis we have 3x+12

Answer 2

The answer is 2
3(x+4) is equal to 3x+12