Binomial Expansion (3x+2y^2)^7
A. Find the 3rd term
B. find the coefficient of the 4th term
C. Find the
power of y in the fifth term

The answer is a good luck

Ibelieve it would be letter c (:

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)