Answer:
I'm not SUPER sure but, it only can exist where there is a region in a planetary system where liquid water might exist on the surface of a planet. That puts it in the "habitable zone" which is where it can exist.
Yes, because to be in congruent with something means to have the same shape and size.
Hope this helps!
Answer- (5x-1)(2x+1)
let me know if you need to see work