Which of the following is a step in simplifying the expression (see first image)

(the second image is the options for multiple choice)


Please be serious and don't joke around! <3 I really need help.

Which of the following is a step in simplifying the expression see first image the second image is the options for multiple choice Please be serious and dont jo class=
Which of the following is a step in simplifying the expression see first image the second image is the options for multiple choice Please be serious and dont jo class=