Suppose one of your friends is struggling with the process used to factor a trinomial. You show your friend this formula for a trinomial: ax2 + bc + c where LaTeX: a\ne0a≠0 and LaTeX: a\ne1a≠1 Next, you give your friend this equation as an example:
2x2 + 11x + 12.
Imagine that you go on to instruct your friend on factoring trinomials using this example.
1. What do you think is a common mistake that your friend might make when factoring this type of trinomial?
2. What advice would you give your friend for avoiding this mistake?
3. What would you tell your friend to do in order to check his work after he factored the trinomial?