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:

-9 and 20


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

-9 × 20 = -180
-9 + 20 = 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 - 9 ) (x + 20)

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

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


Multiply To One Number and Add Up To Another
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