Question

How do you solve `0 = x^2 + 5x + 6`?

Answer 1

Since `x^2+5x+6` can be factored as
`(x+1)(x+5)`

`0 = x^2+5x+6`
is equivalent to
`(x+1)(x+5) = 0`

which implies
either `(x+1) = 0` or `(x+5) = 0`

So
`x=-1` or `x=-5`