What two numbers multiply to -390 and add up to -29?

Here we answer the question: "What two numbers multiply to -390 and add up to -29?"

The answer to your question is:

-39 and 10

Below we illustrate and prove that -39 and 10 multiply to -390 and add up to -29:

-39 × 10 = -390
-39 + 10 = -29

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

x² - 29x - 390 = 0

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

(x - 39 ) (x + 10)

To summarize, since -39 and 10 multiply to -390 and add up -29, you know that the following is true:

x² - 29x - 390 = (x - 39 ) (x + 10)

Multiply To One Number and Add Up To Another
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