Given polynomial is x3+2x+15−72x2−x6 ,
=15x3+2x5+15−72x2−x6
(i) The degree of the polynomial is the highest power of the variable i.e. 6.
(ii)The coefficient of x3 in given polynomial is 15.
(iii)The coefficient of x6 in given polynomial is -1.
(iv)The constant term in given polynomial is 15.