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VBoka · Answer 1 · 2022-11-09T03:26:31+0000

Answer:

$(-\infty, -5] \cup (4,\infty)$

Explanation:

The symbol
$\cup$ is set notation for UNION--put two sets together into one set.

The first part of the interval notation describes x less than or equal to -5 -- notice the bracket symbol after -5, meaning include -5.