What two numbers multiply to -890 and add up to 79?

Here we answer the question: "What two numbers multiply to -890 and add up to 79?"

The answer to your question is:

-10 and 89

Below we illustrate and prove that -10 and 89 multiply to -890 and add up to 79:

-10 × 89 = -890
-10 + 89 = 79

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

x² + 79x - 890 = 0

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

(x - 10 ) (x + 89)

To summarize, since -10 and 89 multiply to -890 and add up 79, you know that the following is true:

x² + 79x - 890 = (x - 10 ) (x + 89)

Multiply To One Number and Add Up To Another
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