What two numbers multiply to -216 and add up to 6?

Here we answer the question: "What two numbers multiply to -216 and add up to 6?"

The answer to your question is:

-12 and 18

Below we illustrate and prove that -12 and 18 multiply to -216 and add up to 6:

-12 × 18 = -216
-12 + 18 = 6

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

x² + 6x - 216 = 0

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

(x - 12 ) (x + 18)

To summarize, since -12 and 18 multiply to -216 and add up 6, you know that the following is true:

x² + 6x - 216 = (x - 12 ) (x + 18)

Multiply To One Number and Add Up To Another
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