What two numbers multiply to -39 and add up to -10?




Here we answer the question: "What two numbers multiply to -39 and add up to -10?"

The answer to your question is:

-13 and 3


Below we illustrate and prove that -13 and 3 multiply to -39 and add up to -10:

-13 × 3 = -39
-13 + 3 = -10

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

x2 - 10x - 39 = 0

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

(x - 13 ) (x + 3)

To summarize, since -13 and 3 multiply to -39 and add up -10, you know that the following is true:

x2 - 10x - 39 = (x - 13 ) (x + 3)


Multiply To One Number and Add Up To Another
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