Question

CAN SOMEONE MAKE ME UNDERSTAND MULTIPLICATIVE INVERSE AND ADDITIVE INVERSE?

Answer 1

additive inverse 
the number which you can subtract or add to the given number to get 0 (zero).
eg; given number:8
      then its additive inverse would be: -8
       as 8-8=0
multiplicative inverse
the number which is multiplied to the given number to get 1
eg; given number: 5
      multiplicative inverse : 1/5
      as 5*1/5=1