What two numbers multiply to 42 and add up to -23?

Here we answer the question: "What two numbers multiply to 42 and add up to -23?"

The answer to your question is:

-21 and -2

Below we illustrate and prove that -21 and -2 multiply to 42 and add up to -23:

-21 × -2 = 42
-21 + -2 = -23

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

x² - 23x + 42 = 0

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

(x - 21 ) (x - 2)

To summarize, since -21 and -2 multiply to 42 and add up -23, you know that the following is true:

x² - 23x + 42 = (x - 21 ) (x - 2)

Multiply To One Number and Add Up To Another
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