The discriminant of the quadratic equation $b x^{2}+a x+c=0 ; b
eq 0$ is given by :\

Question

The discriminant of the quadratic equation $b x^{2}+a x+c=0 ; b 
eq 0$ is given by :\

Professor PC Thomas Classes · Answer

(d): We have, $b x^{2}+a x+c=0$ On comparing with $A x^{2}+B x+C=0$, we get\ $A=b, B=a$ and $C=c$\ $	herefore \quad D=B^{2}-4 A C=a^{2}-4 b c\left[\becauseight.$ Discriminant $\left.=B^{2}-4 A Cight]$\