Question

Factor each expression
1. 3n + 9
2. t² + 4t
3. 15 + 20x

Answer 1

1... 3 (n + 3)
2... t (t + 4)
3... 5 (3 + 4x)

The trick to all of these is finding common factors, then taking them out... IT's pretty easy once you get the hang of it.