Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$|x^{2}-2|\ge2$$

Evaluate (complex solution)

$|x^{2}-2|\geq 2$

Solve for x

$x\in 0\cup (-\infty,-2]\cup [2,\infty)$

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