CBSE 2025 · Region 3 · Set 2 · Q14 · 1 mark
The discriminant of the quadratic equation $\displaystyle \mathrm{bx}^{2}+\mathrm{ax}+\mathrm{c}=0 ; \mathrm{b} \neq 0$ is given by :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle \mathrm{a}^{2}-4 \mathrm{bc}$
Quadratic EquationsNature of Roots and the DiscriminantRemembermcqeasy
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CBSE Class 10 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.