Answer:
Explanation:
A polynomial is something off the form ax^n+bx^(n-1)+cx^(n-2)+.........+x
so a 2nd degree polynomial is the one in which highest degree of the polynomial is 2 i-e, in above generalization n=2
so in single variable following are the polynomials of degree 2
an^2+bx+c
an^2+c in case b=0
an^2+bx, in case c=0
in double variable case following are the polynomials with degree 2
axy+bx+cy