Question

Question #e8fc7

Answer 1

Your question is not explicit enough and needs clarification.
Taking a shot in the dark!

Explanation:

Stated that`" " f(x)=4/(x-3)" "` and that `" "h(x)=-2x`

Do you mean: simplify `f(h(x))`? .....(1)

Do you mean: simplify `h(f(x))`?.....(2)

Or something entirely different. Please explain!

'______
Solving (1)

Substitute `h(x) " into " f(x)` giving
`f(x) = 4/(-2x - 3) = - 4/(2x+3)`
'_______
Solving (2)

Substitute `f(x) " into " h(x)` giving
`h(x)= -2 times 4/(x-3) = -8/(x-3)`