What two numbers multiply to -90 and add up to -43?

Here we answer the question: "What two numbers multiply to -90 and add up to -43?"

The answer to your question is:

-45 and 2

Below we illustrate and prove that -45 and 2 multiply to -90 and add up to -43:

-45 × 2 = -90
-45 + 2 = -43

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

x² - 43x - 90 = 0

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

(x - 45 ) (x + 2)

To summarize, since -45 and 2 multiply to -90 and add up -43, you know that the following is true:

x² - 43x - 90 = (x - 45 ) (x + 2)

Multiply To One Number and Add Up To Another
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