Question

The answer to this question

Answer 1

x ≥ 6

Explanation:

g ￮ h

= g(h(x))

= g(2x - 8)

=
`√(2x-8-4)`

=
`√(2x-12)`

the expression inside a radical must be greater than or equal to zero.

It cannot be negative , so

2x - 12 ≥ 0 ( add 12 to both sides)

2x ≥ 12 ( divide both sides by 2 )

x ≥ 6