What two numbers multiply to -637 and add up to 84?




Here we answer the question: "What two numbers multiply to -637 and add up to 84?"

The answer to your question is:

-7 and 91


Below we illustrate and prove that -7 and 91 multiply to -637 and add up to 84:

-7 × 91 = -637
-7 + 91 = 84

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

x2 + 84x - 637 = 0

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

(x - 7 ) (x + 91)

To summarize, since -7 and 91 multiply to -637 and add up 84, you know that the following is true:

x2 + 84x - 637 = (x - 7 ) (x + 91)


Multiply To One Number and Add Up To Another
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