What two numbers multiply to -210 and add up to -11?




Here we answer the question: "What two numbers multiply to -210 and add up to -11?"

The answer to your question is:

-21 and 10


Below we illustrate and prove that -21 and 10 multiply to -210 and add up to -11:

-21 × 10 = -210
-21 + 10 = -11

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

x2 - 11x - 210 = 0

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

(x - 21 ) (x + 10)

To summarize, since -21 and 10 multiply to -210 and add up -11, you know that the following is true:

x2 - 11x - 210 = (x - 21 ) (x + 10)


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