What two numbers multiply to 39 and add up to 16?

Here we answer the question: "What two numbers multiply to 39 and add up to 16?"

The answer to your question is:

3 and 13

Below we illustrate and prove that 3 and 13 multiply to 39 and add up to 16:

3 × 13 = 39
3 + 13 = 16

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

x² + 16x + 39 = 0

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

(x + 3 ) (x + 13)

To summarize, since 3 and 13 multiply to 39 and add up 16, you know that the following is true:

x² + 16x + 39 = (x + 3 ) (x + 13)

Multiply To One Number and Add Up To Another
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