What two numbers multiply to 840 and add up to -127?

Here we answer the question: "What two numbers multiply to 840 and add up to -127?"

The answer to your question is:

-120 and -7

Below we illustrate and prove that -120 and -7 multiply to 840 and add up to -127:

-120 × -7 = 840
-120 + -7 = -127

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

x² - 127x + 840 = 0

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

(x - 120 ) (x - 7)

To summarize, since -120 and -7 multiply to 840 and add up -127, you know that the following is true:

x² - 127x + 840 = (x - 120 ) (x - 7)

Multiply To One Number and Add Up To Another
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