Question

How do you factor `s^2-9`?

Answer 1

To factor `s^2-9`, you will need to use the difference of two squrares. This property tells us that `(x^2-y^2)` can be rewritten as `(x-y)(x+y)`

In this case, `s^2-9` will become `(s-3)(s+3)`, which is the answer you are looking for.