What two numbers multiply to 642 and add up to 217?

Here we answer the question: "What two numbers multiply to 642 and add up to 217?"

The answer to your question is:

3 and 214

Below we illustrate and prove that 3 and 214 multiply to 642 and add up to 217:

3 × 214 = 642
3 + 214 = 217

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

x² + 217x + 642 = 0

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

(x + 3 ) (x + 214)

To summarize, since 3 and 214 multiply to 642 and add up 217, you know that the following is true:

x² + 217x + 642 = (x + 3 ) (x + 214)

Multiply To One Number and Add Up To Another
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