If - 2mx ^ NY is a quintic monomial about X, y and the coefficient is - 4, find the value of M, n

If - 2mx ^ NY is a quintic monomial about X, y and the coefficient is - 4, find the value of M, n

Because it is a binomial of degree 5, so n = 5; because the coefficient is - 4, so - 2m = - 4 = > m = 2

If we know the monomials a = 3nx & # 179; y ^ m, B = 2mx ^ NY & # 178;;, then a-b=-----

A-B
=3nx³y^m-2mx^ny²
If it is of the same kind
Then n = 3, M = 2
So a-b
=9x³y²-4x³y²
=5x³y²

There are two numerical factors in the monomial. Which is the coefficient?

The coefficient is the product of two numbers. As you said in the example, the coefficient is - 30