What two numbers multiply to 27 and add up to 12?

Here we answer the question: "What two numbers multiply to 27 and add up to 12?"

The answer to your question is:

3 and 9

Below we illustrate and prove that 3 and 9 multiply to 27 and add up to 12:

3 × 9 = 27
3 + 9 = 12

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x² + 12x + 27 = 0

If so, the solution to factor the quadratic equation above is:

(x + 3 ) (x + 9)

To summarize, since 3 and 9 multiply to 27 and add up 12, you know that the following is true:

x² + 12x + 27 = (x + 3 ) (x + 9)

Multiply To One Number and Add Up To Another
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