Question

If `f(x)=x^2-x`, how do you find `f(-x)`?

Answer 1

`f(-x)=x^2+x`

Explanation:

To evaluate f(-x) substitute x = - x in f(x)

`f(color(red)(-x))=(color(red)(-x))^2-(color(red)(-x))=x^2+x`