What two numbers multiply to -780 and add up to -47?




Here we answer the question: "What two numbers multiply to -780 and add up to -47?"

The answer to your question is:

-60 and 13


Below we illustrate and prove that -60 and 13 multiply to -780 and add up to -47:

-60 × 13 = -780
-60 + 13 = -47

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

x2 - 47x - 780 = 0

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

(x - 60 ) (x + 13)

To summarize, since -60 and 13 multiply to -780 and add up -47, you know that the following is true:

x2 - 47x - 780 = (x - 60 ) (x + 13)


Multiply To One Number and Add Up To Another
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