A polynomial is given by q $=-5\mathrm{.}5$x$^2-2\mathrm{.}0$

$.$ Read x from input as a float and compute q using the polynomial.

Ex: If the input is $2\mathrm{.}2,$ then the output is:

$-28\mathrm{.}620$

Note:

x$^2$ can be computed using $*.$