What two numbers multiply to -210 and add up to -1?




Here we answer the question: "What two numbers multiply to -210 and add up to -1?"

The answer to your question is:

-15 and 14


Below we illustrate and prove that -15 and 14 multiply to -210 and add up to -1:

-15 × 14 = -210
-15 + 14 = -1

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

x2 - 1x - 210 = 0

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

(x - 15 ) (x + 14)

To summarize, since -15 and 14 multiply to -210 and add up -1, you know that the following is true:

x2 - 1x - 210 = (x - 15 ) (x + 14)


Multiply To One Number and Add Up To Another
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