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

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Answer 1 · 2016-08-05T22:48:35

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

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 $x=-3$

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