What two numbers multiply to -387 and add up to -126?

Here we answer the question: "What two numbers multiply to -387 and add up to -126?"

The answer to your question is:

-129 and 3

Below we illustrate and prove that -129 and 3 multiply to -387 and add up to -126:

-129 × 3 = -387
-129 + 3 = -126

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

x² - 126x - 387 = 0

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

(x - 129 ) (x + 3)

To summarize, since -129 and 3 multiply to -387 and add up -126, you know that the following is true:

x² - 126x - 387 = (x - 129 ) (x + 3)

Multiply To One Number and Add Up To Another
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