What two numbers multiply to -987 and add up to 26?

Here we answer the question: "What two numbers multiply to -987 and add up to 26?"

The answer to your question is:

-21 and 47

Below we illustrate and prove that -21 and 47 multiply to -987 and add up to 26:

-21 × 47 = -987
-21 + 47 = 26

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

x² + 26x - 987 = 0

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

(x - 21 ) (x + 47)

To summarize, since -21 and 47 multiply to -987 and add up 26, you know that the following is true:

x² + 26x - 987 = (x - 21 ) (x + 47)

Multiply To One Number and Add Up To Another
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