What two numbers multiply to -416 and add up to -415?

Here we answer the question: "What two numbers multiply to -416 and add up to -415?"

The answer to your question is:

-416 and 1

Below we illustrate and prove that -416 and 1 multiply to -416 and add up to -415:

-416 × 1 = -416
-416 + 1 = -415

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

x² - 415x - 416 = 0

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

(x - 416 ) (x + 1)

To summarize, since -416 and 1 multiply to -416 and add up -415, you know that the following is true:

x² - 415x - 416 = (x - 416 ) (x + 1)

Multiply To One Number and Add Up To Another
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