What two numbers multiply to -624 and add up to -70?

Here we answer the question: "What two numbers multiply to -624 and add up to -70?"

The answer to your question is:

-78 and 8

Below we illustrate and prove that -78 and 8 multiply to -624 and add up to -70:

-78 × 8 = -624
-78 + 8 = -70

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

x² - 70x - 624 = 0

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

(x - 78 ) (x + 8)

To summarize, since -78 and 8 multiply to -624 and add up -70, you know that the following is true:

x² - 70x - 624 = (x - 78 ) (x + 8)

Multiply To One Number and Add Up To Another
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