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Mathematics · 2022 · 2 marks
CBSE 2022 · Region 2 · Set 1 · Q1
Solve the quadratic equation: x^2+2 √ 2 x-6=0 for x.
Solve the quadratic equation : $\displaystyle x^{2}+2 \sqrt{2} x-6=0$ for $\displaystyle x$.
Marking-scheme solution
\(\displaystyle \mathrm{D}=32\)
\(\displaystyle x=\frac{-2 \sqrt{2} \pm \sqrt{8+24}}{2}\)
\(\displaystyle \Rightarrow x=\sqrt{2},-3 \sqrt{2}\)
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CBSE Class 10 Mathematics past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.