Answer
$(-∞, -3]∪ [3, ∞)$
Work Step by Step
The inequality$ |x|≥3$ can be calculated as follows:
We know that if$ |x|≥a$, then
$x≤-a,x≥a$ … (1)
Now, apply equation (1) for expression$ |x|≥3$ to get
$x≤-3,x≥3$
Hence, the solution set is$(-∞, -3]∪ [3, ∞)$.
