The number that is its own opposite is zero. Zero is both a positive and a negative number at the same time.
Answer:
the domain is f[x]=x2x5ty57ju68jujokm000oikukoii
Eenbejejejejrhrbeueiiwjsjdje
It would still be 0 because anything times 0 is still 0.
Are there answers? I would love to help more :)