We know that the product of a polynomial and the monomial - 7x & # 178; Y & # 179; is The fourth power of 21x, the fifth power of Y minus the seventh power of 28x, the seventh power of y plus the sixth power of 14x, the sixth power of Y, try to find this polynomial

We know that the product of a polynomial and the monomial - 7x & # 178; Y & # 179; is The fourth power of 21x, the fifth power of Y minus the seventh power of 28x, the seventh power of y plus the sixth power of 14x, the sixth power of Y, try to find this polynomial

(21x^4y^5-28x^7y^7+14x^6y^6)/(-7x^2y^3)
=21x^4y^5/-7x^2y^3-28x^7y^7/-7x^2y^3+14x^6y^6/-7x^2y^3
=-3x^2y^2+4x^5y^4-2x^4y^3