Helle I did my best but I'm doing something wrong.
H hajfajv New member Joined Nov 13, 2019 Messages 48 Mar 6, 2022 #1 Helle I did my best but I'm doing something wrong. Attachments Screenshot_20220306-115826_OneNote.jpg 1.1 MB · Views: 10
Harry_the_cat Elite Member Joined Mar 16, 2016 Messages 3,693 Mar 6, 2022 #2 Check your middle term on the RHS of your first line.
