What two numbers multiply to -815 and add up to 158?

Here we answer the question: "What two numbers multiply to -815 and add up to 158?"

The answer to your question is:

-5 and 163

Below we illustrate and prove that -5 and 163 multiply to -815 and add up to 158:

-5 × 163 = -815
-5 + 163 = 158

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

x² + 158x - 815 = 0

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

(x - 5 ) (x + 163)

To summarize, since -5 and 163 multiply to -815 and add up 158, you know that the following is true:

x² + 158x - 815 = (x - 5 ) (x + 163)

Multiply To One Number and Add Up To Another
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