What two numbers multiply to -130 and add up to 21?




Here we answer the question: "What two numbers multiply to -130 and add up to 21?"

The answer to your question is:

-5 and 26


Below we illustrate and prove that -5 and 26 multiply to -130 and add up to 21:

-5 × 26 = -130
-5 + 26 = 21

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

x2 + 21x - 130 = 0

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

(x - 5 ) (x + 26)

To summarize, since -5 and 26 multiply to -130 and add up 21, you know that the following is true:

x2 + 21x - 130 = (x - 5 ) (x + 26)


Multiply To One Number and Add Up To Another
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