What two numbers multiply to 640 and add up to 322?

Here we answer the question: "What two numbers multiply to 640 and add up to 322?"

The answer to your question is:

2 and 320

Below we illustrate and prove that 2 and 320 multiply to 640 and add up to 322:

2 × 320 = 640
2 + 320 = 322

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

x² + 322x + 640 = 0

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

(x + 2 ) (x + 320)

To summarize, since 2 and 320 multiply to 640 and add up 322, you know that the following is true:

x² + 322x + 640 = (x + 2 ) (x + 320)

Multiply To One Number and Add Up To Another
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