What two numbers multiply to 630 and add up to -79?

Here we answer the question: "What two numbers multiply to 630 and add up to -79?"

The answer to your question is:

-70 and -9

Below we illustrate and prove that -70 and -9 multiply to 630 and add up to -79:

-70 × -9 = 630
-70 + -9 = -79

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

x² - 79x + 630 = 0

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

(x - 70 ) (x - 9)

To summarize, since -70 and -9 multiply to 630 and add up -79, you know that the following is true:

x² - 79x + 630 = (x - 70 ) (x - 9)

Multiply To One Number and Add Up To Another
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