Which function is equivalent to

Question

`g\left(x\right)\ =x^{2}\ -\ 2x\ -\ 15`?

Answer 1

The function that is equivalent to `g(x) = x^2 - 2x - 15` is `f(x) = (x - 5)(x + 3)`. This is because when you expand `f(x) = (x - 5)(x + 3)`, you will get `x^2 - 2x - 15`.