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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 1 · Set 1 · Q8
The least positive value of k, for which the quadratic equation 2 x^2+ k x-4=0 has rational roots, is
The least positive value of k , for which the quadratic equation $\displaystyle 2 x^{2}+\mathrm{k} x-4=0$ has rational roots, is
Official answer
(B)
$\displaystyle 2$
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CBSE Class 10 Mathematics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.