Question

Why is my textbook's solution so much more complicated than mine? http://i.imgur.com/ROMNdD7.jpg

Answer 1

As long as you're getting the right answer.. doesnt matter. :)

Answer 2

You distributed slightly differently. You've multiplied yours in one step, the textbook did it in two. There is no need for you to worry.

Answer 3

Well alright. I just feel like there's a more correct way, and if there is, that's what I should be trying to get the hang of.

Answer 4

Thanks for your replies.