For which operations is the set {–1, 0, 1} closed?

Choose all answers that are correct.

A.
addition

B.
division

C.
multiplication

D.
subtraction

Question

For which operations is the set {–1, 0, 1} closed?
 
Choose all answers that are correct. 
 
 A.
addition
 
 B.
division
 
 C.
multiplication
 
 D.
subtraction

anonymous · Answer

@chosenmatt

anonymous · Answer

I think it would be multiplaction and addition but idk

chosenmatt · Answer

i think your right

anonymous · Answer

ok i geuss i will have to go over it again in my book

chosenmatt · Answer

Solve for x.
 
3 • 4 – 3 • 7 = 3(x – 7)
 
 A.
4
 
 B.
–10
 
 C.
6
 
 D.
–3

geerky42 · Answer

I'm sure it's only multiplication, because in addition, you can have $1+1=2$, which is not part of set.

anonymous · Answer

ok thx geeky42

anonymous · Answer

@chosenmatt your answere is 4