`x^3-7x^2+2x-3,\ 2+1/2y-3/2y^2+4y^3` are cubic polynomials.

x^(3)-7x^(2)+2x-3,2+(1)/(2)y-(3)/(2)y^(2)+4y^(3) are cubic polynomials.

2x^2-3x+4,\ 2-x+x^2,\ 2y^2-3/2y+1/4 are quadratic polynomials.

2x^(2)-3x+4,2-x+x^(2),2y^(2)-(3)/(2)y+(1)/(4) are quadratic polynomials.

The HCF and LCM of two polynomials are (x+y) and (3x^5+5x^4y+2x^3y^2-3x^2y^3-5xy^4-2y^5) respectively. If on of the polynomials is (x^2-y^2) , then the other polynomial is

3x^(4)-2x^(3)y^(2)+7xy^(3)-9x+5y+4 is a polynomials in x and y of degree 5, whereas (1)/(2)-3x+7x^(2)y-(3)/(4)x^(2)y^(2) is a polynomial of degree 4 is x and y

3-2x^(2)+4x^(2)y+8y-(5)/(3)xy^(2) is a polynomial in two variables x and y.

HCF and LCM of two polynomials are (x+y) and 3x^(5) + 5x^(4)y + 2x^(3)y^(2) - 3x^(2)y^(3) - 5xy^(4) - 2y^(5) , respectively. If one of the polynomials is (x^(2) - y^(2)) . Then, the other polynomial is

3-2x^2+4x^2y+8y-5/3x y^2 is a polynomial in two variables x and y .