What two numbers multiply to -864 and add up to -87?

Here we answer the question: "What two numbers multiply to -864 and add up to -87?"

The answer to your question is:

-96 and 9

Below we illustrate and prove that -96 and 9 multiply to -864 and add up to -87:

-96 × 9 = -864
-96 + 9 = -87

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

x² - 87x - 864 = 0

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

(x - 96 ) (x + 9)

To summarize, since -96 and 9 multiply to -864 and add up -87, you know that the following is true:

x² - 87x - 864 = (x - 96 ) (x + 9)

Multiply To One Number and Add Up To Another
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