Question

How do you find all the zeros of `f(x) = x^2 + 5x +6`?

Answer 1

The zeros of `f(x)` are `x=-2` and `x=-3`

Explanation:

Note that `2+3 = 5` and `2xx3 = 6`

So we find:

`f(x) = x^2+5x+6 = (x+2)(x+3)`

Hence the zeros of `f(x)` are `x=-2` and `x=-3`