What two numbers multiply to -806 and add up to 401?

Here we answer the question: "What two numbers multiply to -806 and add up to 401?"

The answer to your question is:

-2 and 403

Below we illustrate and prove that -2 and 403 multiply to -806 and add up to 401:

-2 × 403 = -806
-2 + 403 = 401

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

x² + 401x - 806 = 0

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

(x - 2 ) (x + 403)

To summarize, since -2 and 403 multiply to -806 and add up 401, you know that the following is true:

x² + 401x - 806 = (x - 2 ) (x + 403)

Multiply To One Number and Add Up To Another
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