What two numbers multiply to -85 and add up to -84?




Here we answer the question: "What two numbers multiply to -85 and add up to -84?"

The answer to your question is:

-85 and 1


Below we illustrate and prove that -85 and 1 multiply to -85 and add up to -84:

-85 × 1 = -85
-85 + 1 = -84

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

x2 - 84x - 85 = 0

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

(x - 85 ) (x + 1)

To summarize, since -85 and 1 multiply to -85 and add up -84, you know that the following is true:

x2 - 84x - 85 = (x - 85 ) (x + 1)


Multiply To One Number and Add Up To Another
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