 Hello and welcome to the session. In this session we discuss the following question which says if the binary operation star on the set of integers z is defined by a star b is equal to a plus 3b square then find the value of 2 star 4. Let's move on to the solution now. Now the binary operation star is defined by a star b is equal to a plus 3b square. We need to find the value for 2 star 4. So in this we put a equal to 2 and b equal to 4. Therefore we get 2 star 4 is equal to 2 plus 3 into 4 square. That is this is equal to 2 plus 16 into 3 which is equal to 2 plus 48. That is equal to 50. Thus we get 2 star 4 is equal to 50. So this is the final answer. This completes the session. Hope you have understood the solution of this question.