Question

Find the value of discriminant for the following equation.

$x^2-3x+2=0$

Answer 1

The value of discriminant of $x^2-3x+2=0$ is
$D=b^2-4ac$
$a=1,b=-3,c=2$

$\therefore D=(-3{)}^2-4\times 1\times 2$
$=9-8$
$=1$