1-9 / 41a ^ 3n-2 B ^ 2n + 3 is a binomial of degree six, and the value of n is obtained 2 if / M + 3 / + (n + 2) ^ 2 = 0, find the coefficients and times of (1) m, N; (2) the monomial MX ^ n + 4Y / 9

1-9 / 41a ^ 3n-2 B ^ 2n + 3 is a binomial of degree six, and the value of n is obtained 2 if / M + 3 / + (n + 2) ^ 2 = 0, find the coefficients and times of (1) m, N; (2) the monomial MX ^ n + 4Y / 9

The sum of AB times is 6
So 3n-2 + 2n + 3 = 6
5n=5
n=1
That is, M + 3 = n + 2 = 0
m=-3,n=-2
The monomial is - 3x & # 178; Y / 9
So the number of times is 2 + 1 = 3
The coefficient is - 3 / 9 = - 1 / 3