$2$ A quadratic $($second$-$order polynomial$)$ equation

$a{x}^2+bx+c=0$

can be solved by the formulas

$x_1=\frac{-b+\sqrt[\phantom{2}]{b^2-4ac}}{2a}$

$x_2=\frac{-b-\sqrt[\phantom{2}]{b^2-4ac}}{2a}$

Write a program to solve for $x$ in equation $x^2-5x+6=0.$ You can use the standard

library function sqrt$($double$)$ to perform square root. To use the sqrt$()$ function, make sure you add the header file math.h

example:

double result $=$ sqrt$(4\mathrm{.}0)$;