Probability
Full Member
- Joined
- Jan 26, 2012
- Messages
- 425
My tutor previous gave an answer to a question I did and I cannot see how the tutors answer can be right, but I do stand to be corrected on this. I have the following expression. (1 - u)(2u + 1/3). I worked it out and got the answer = 5u / 3 + 1/3 My tutor thinks the answer is - 2u^2 + 5u / 3 + 1/3. I cannot for the like of me see how he can re-introduce - 2u^2 into the expression when it has already been used as 4u? I would really like to show the working out but for some odd reason this forum won't ley me do line breaks? Sorry for the presentation but something is not working correctly otherwise I would show the working out.