The link in the post by thomas doesn't work (The content cannot be displayed. Please contact the site owner for assistance.). Also, I was sent to his post from the note under the Your Turn question - Are you wondering how to factor quadratics when the coefficient of the first term (leading coefficient) isn't equal to 1? This forum post explains why! Should it say "This forum post explains how" instead of why?
@divinedolphin Could you please try the link again?
It was this:
It seems to open all right for me. Perhaps you opened the link at a time when we were doing maintenance for the forum (earlier this morning)?
Thank you for the suggestion about changing the wording of the message. I've taken this into account.
@divinedolphin Oh I see what you mean! The link was outdated because it pointed to a lesson from Module 4 that pre-dated the new Module 4 revision lessons. I've fixed this now. Thank you so much for all of your help!