What two numbers multiply to -989 and add up to 988?

Here we answer the question: "What two numbers multiply to -989 and add up to 988?"

The answer to your question is:

-1 and 989

Below we illustrate and prove that -1 and 989 multiply to -989 and add up to 988:

-1 × 989 = -989
-1 + 989 = 988

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

x² + 988x - 989 = 0

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

(x - 1 ) (x + 989)

To summarize, since -1 and 989 multiply to -989 and add up 988, you know that the following is true:

x² + 988x - 989 = (x - 1 ) (x + 989)

Multiply To One Number and Add Up To Another
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