Question

$a{x}^2+bx+c=0$, where $a,b,c$ are real, has real roots is

• A. $a,b,c$ are integers
• B. $b^2>3ac$
• C. $ac>0$ and $b$ is zero
• D. $c=0$

Answer 1

The correct option is D $c=0$

$a{x}^2+bx+c=0$
For real roots $b^2-4ac\ge 0$
If $c=0$, then $b^2\ge 0$. This is always true.