What two numbers multiply to -990 and add up to -159?

Here we answer the question: "What two numbers multiply to -990 and add up to -159?"

The answer to your question is:

-165 and 6

Below we illustrate and prove that -165 and 6 multiply to -990 and add up to -159:

-165 × 6 = -990
-165 + 6 = -159

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

x² - 159x - 990 = 0

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

(x - 165 ) (x + 6)

To summarize, since -165 and 6 multiply to -990 and add up -159, you know that the following is true:

x² - 159x - 990 = (x - 165 ) (x + 6)

Multiply To One Number and Add Up To Another
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