What two numbers multiply to -387 and add up to 386?

Here we answer the question: "What two numbers multiply to -387 and add up to 386?"

The answer to your question is:

-1 and 387

Below we illustrate and prove that -1 and 387 multiply to -387 and add up to 386:

-1 × 387 = -387
-1 + 387 = 386

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

x² + 386x - 387 = 0

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

(x - 1 ) (x + 387)

To summarize, since -1 and 387 multiply to -387 and add up 386, you know that the following is true:

x² + 386x - 387 = (x - 1 ) (x + 387)

Multiply To One Number and Add Up To Another
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