Use the discriminant to classify the roots:

$4x^2-12x+9=0$
$2x^2+x-4=0$
$3x^2-2x+5=0$.

Question

Use the discriminant to classify the roots: $4x^2-12x+9=0$ $2x^2+x-4=0$ $3x^2-2x+5=0$.

Accepted Answer

(a) Equal real roots; (b) Two distinct real roots; (c) No real roots

Quadratic Functions, Equations and Inequalities