Expression 1:

My Work:

The only answer choices I have for this self test are

Answer:

Expression 2:

The author states the correct answer for expression 2 is , and yes they say "x" not "y"....either way not sure how to arrive at this answer either.

This is a self teaching algebra book, however the author decided to not show her work in any of the chapter reviews which is frustrating.

Thanks again!