What two numbers multiply to 324 and add up to -85?

Here we answer the question: "What two numbers multiply to 324 and add up to -85?"

The answer to your question is:

-81 and -4

Below we illustrate and prove that -81 and -4 multiply to 324 and add up to -85:

-81 × -4 = 324
-81 + -4 = -85

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

x² - 85x + 324 = 0

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

(x - 81 ) (x - 4)

To summarize, since -81 and -4 multiply to 324 and add up -85, you know that the following is true:

x² - 85x + 324 = (x - 81 ) (x - 4)

Multiply To One Number and Add Up To Another
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