What two numbers multiply to -13 and add up to -12?




Here we answer the question: "What two numbers multiply to -13 and add up to -12?"

The answer to your question is:

-13 and 1


Below we illustrate and prove that -13 and 1 multiply to -13 and add up to -12:

-13 × 1 = -13
-13 + 1 = -12

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

x2 - 12x - 13 = 0

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

(x - 13 ) (x + 1)

To summarize, since -13 and 1 multiply to -13 and add up -12, you know that the following is true:

x2 - 12x - 13 = (x - 13 ) (x + 1)


Multiply To One Number and Add Up To Another
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