Spot the other mistake, I will mark you 5 stars and a favorite

Spot The Other Mistake I Will Mark You 5 Stars And A Favorite class=

Answer :

Answer:

Step-by-step explanation:

- Example for understandment

If x2 = 16 , then the possible values of x are +4, meaning 4 and -4.

4+-4=0, so the sum of all possible values of x are 0.