What two numbers multiply to 231 and add up to -40?

Here we answer the question: "What two numbers multiply to 231 and add up to -40?"

The answer to your question is:

-33 and -7

Below we illustrate and prove that -33 and -7 multiply to 231 and add up to -40:

-33 × -7 = 231
-33 + -7 = -40

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

x² - 40x + 231 = 0

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

(x - 33 ) (x - 7)

To summarize, since -33 and -7 multiply to 231 and add up -40, you know that the following is true:

x² - 40x + 231 = (x - 33 ) (x - 7)

Multiply To One Number and Add Up To Another
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