Practice problem
1+(2+3)1+(2+3)1+(2+3) is equal to which of the following? Select all that apply.
1+(2+3)1+(2+3)1+(2+3)
(1+2)+3(1+2)+3(1+2)+3
(1+3)+2(1+3)+2(1+3)+2
666
Type a concept, like “slope” or “photosynthesis”.