These are equal right?

because in the solution the answer is D

oh sorry, I did a mistake

it seems it is c

I’m getting same answer even when I substitute -1 can you please elaborate why the answer is D

the answer to the first one is C.

I googled it. The answer in the book is wrong.

If you wanna check https://greprepclub.com/forum/m-is-different-from-zero-11466.html