What two numbers multiply to -402 and add up to -401?

Here we answer the question: "What two numbers multiply to -402 and add up to -401?"

The answer to your question is:

-402 and 1

Below we illustrate and prove that -402 and 1 multiply to -402 and add up to -401:

-402 × 1 = -402
-402 + 1 = -401

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

x² - 401x - 402 = 0

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

(x - 402 ) (x + 1)

To summarize, since -402 and 1 multiply to -402 and add up -401, you know that the following is true:

x² - 401x - 402 = (x - 402 ) (x + 1)

Multiply To One Number and Add Up To Another
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