Question

I did this one slot of times but I never get it

Answer 1

A:
`x^(2) \leq 16`

A is a solution set of the inequality.

This means:

`x^(2) \leq 4`

∩ (AND)

`x^(2) \geq -4`

Which can also be written as:

Interval notation: x ∈ [-4, 4]

Set notation: {x |
`-4 \leq x \leq 4` }