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:

7 and 120

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

7 × 120 = 840
7 + 120 = 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 + 7 ) (x + 120)

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

x² + 127x + 840 = (x + 7 ) (x + 120)

Multiply To One Number and Add Up To Another
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