What two numbers multiply to -300 and add up to 5?

Here we answer the question: "What two numbers multiply to -300 and add up to 5?"

The answer to your question is:

-15 and 20

Below we illustrate and prove that -15 and 20 multiply to -300 and add up to 5:

-15 × 20 = -300
-15 + 20 = 5

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

x² + 5x - 300 = 0

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

(x - 15 ) (x + 20)

To summarize, since -15 and 20 multiply to -300 and add up 5, you know that the following is true:

x² + 5x - 300 = (x - 15 ) (x + 20)

Multiply To One Number and Add Up To Another
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