What two numbers multiply to 42 and add up to -43?

Here we answer the question: "What two numbers multiply to 42 and add up to -43?"

The answer to your question is:

-42 and -1

Below we illustrate and prove that -42 and -1 multiply to 42 and add up to -43:

-42 × -1 = 42
-42 + -1 = -43

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

x² - 43x + 42 = 0

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

(x - 42 ) (x - 1)

To summarize, since -42 and -1 multiply to 42 and add up -43, you know that the following is true:

x² - 43x + 42 = (x - 42 ) (x - 1)

Multiply To One Number and Add Up To Another
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