What two numbers multiply to -987 and add up to 986?

Here we answer the question: "What two numbers multiply to -987 and add up to 986?"

The answer to your question is:

-1 and 987

Below we illustrate and prove that -1 and 987 multiply to -987 and add up to 986:

-1 × 987 = -987
-1 + 987 = 986

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

x² + 986x - 987 = 0

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

(x - 1 ) (x + 987)

To summarize, since -1 and 987 multiply to -987 and add up 986, you know that the following is true:

x² + 986x - 987 = (x - 1 ) (x + 987)

Multiply To One Number and Add Up To Another
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