What two numbers multiply to -988 and add up to 987?

Here we answer the question: "What two numbers multiply to -988 and add up to 987?"

The answer to your question is:

-1 and 988

Below we illustrate and prove that -1 and 988 multiply to -988 and add up to 987:

-1 × 988 = -988
-1 + 988 = 987

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

x² + 987x - 988 = 0

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

(x - 1 ) (x + 988)

To summarize, since -1 and 988 multiply to -988 and add up 987, you know that the following is true:

x² + 987x - 988 = (x - 1 ) (x + 988)

Multiply To One Number and Add Up To Another
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