You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter LMI
- Start date

- Joined
- Mar 16, 2016

- Messages
- 2,977

- Joined
- Apr 22, 2015

- Messages
- 3,683

Hi LM. There is still one arithmetic error. Recheck the third differences.I did the math again but this time I got -4.

Oh thank you so much! I found it!Hi LM. There is still one arithmetic error. Recheck the third differences.