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

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

The answer to your question is:

1 and 401

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

1 × 401 = 401
1 + 401 = 402

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

x² + 402x + 401 = 0

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

(x + 1 ) (x + 401)

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

x² + 402x + 401 = (x + 1 ) (x + 401)

Multiply To One Number and Add Up To Another
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