What two numbers multiply to -180 and add up to -11?




Here we answer the question: "What two numbers multiply to -180 and add up to -11?"

The answer to your question is:

-20 and 9


Below we illustrate and prove that -20 and 9 multiply to -180 and add up to -11:

-20 × 9 = -180
-20 + 9 = -11

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

x2 - 11x - 180 = 0

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

(x - 20 ) (x + 9)

To summarize, since -20 and 9 multiply to -180 and add up -11, you know that the following is true:

x2 - 11x - 180 = (x - 20 ) (x + 9)


Multiply To One Number and Add Up To Another
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