Posted by: Kevin on 12.02.2021
Ask a Question3(a+b)+3(b+c)+(c+a)3
answer= take 3 common, we get
= 3(a+b+b+c+c+a)
add like pair in bracket we get
= 3(2a+2b+2c)
take 2 common
= 6(a+b+c)
Get 5 credit points for each correct answer. The best one gets 25 in all.