Question

$| {x}^{2} - 10 | \leqslant 6$
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Answer 1

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${x}^{2} - 10 \leqslant 6 \\ {x}^{2} \leqslant 6 + 10 \\ x\leqslant \sqrt{16 } \\ x \: \leqslant 4$

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