Question

If f(x) = 8 – x / x² — 2' then f(–2) =

Answer 1

`f(x)=(8-x)/(x^2-2)`

we replace x=-2

so

`\begin{gathered} f(-2)=(8-(-2))/((-2)^2-2) \\ \end{gathered}`

now solve

`\begin{gathered} (8+2)/(4-2) \\ \\ (10)/(2)=5 \end{gathered}`

the solution is 5