Hi - for statement two could you assume that if i+j is even, and we know that i=j, could you assume that any even + even or odd+odd would in fact be an even result? That is how I came up with my reasoning.
Thanks for pointing this out. You're completely right that the statement "2 times any integer is even" is more accurate. However, since we are told in the prompt that both i and j are integers, the statement in the explanation video is justified within the context of the question. That said, I've let the content editors know about the wording. However, since we are a small group with many projects in progress, it may be a while before the video is updated.
Thanks, again, for taking the time to tell us about this! :)
2 Explanations