What two numbers multiply to 500 and add up to 129?

Here we answer the question: "What two numbers multiply to 500 and add up to 129?"

The answer to your question is:

4 and 125

Below we illustrate and prove that 4 and 125 multiply to 500 and add up to 129:

4 × 125 = 500
4 + 125 = 129

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

x² + 129x + 500 = 0

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

(x + 4 ) (x + 125)

To summarize, since 4 and 125 multiply to 500 and add up 129, you know that the following is true:

x² + 129x + 500 = (x + 4 ) (x + 125)

Multiply To One Number and Add Up To Another
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