Is there a difference between the Backside of the Power

Is there a difference between the Backside of the Power Curve and the Region of Reverse Command? Explain. Under what condition(s), if any,  it is possible that an airplane  requires the application of more power in order to fly slower? Explain

Don’t forget the rubric requirements.

Initial post is 250+ words, citing at least 2 outside sources (not the textbook, youtube, or wiki) which include the author’s name. Content is relevant and answers the discussion question