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:

-13 and 60


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

-13 × 60 = -780
-13 + 60 = 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 - 13 ) (x + 60)

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

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


Multiply To One Number and Add Up To Another
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