**Problem : **
Identify the degree, leading coefficient, and constant term of the
following polynomial:
-3*x*
^{4} +5*x*
^{2} - *x* - 4
.

**Problem : **
Identify the degree, leading coefficient, and constant term of the following
polynomial:
5*x*
^{6} +2*x*
^{5} -2*x*
^{4} +7*x*
^{3} - *x*
^{2} - *x* + 23
.

**Problem : **
List the coefficients of
*x*
^{n}, *x*
^{n-1}, *x*
^{n-2},..., *x*
^{2}, *x*
in that order for
the following polynomial of degree
*n*
:
16*x*
^{8} +3*x*
^{7} - *x*
^{4} + *x*
^{3} - 5*x*
.