What two numbers multiply to 280 and add up to -47?




Here we answer the question: "What two numbers multiply to 280 and add up to -47?"

The answer to your question is:

-40 and -7


Below we illustrate and prove that -40 and -7 multiply to 280 and add up to -47:

-40 × -7 = 280
-40 + -7 = -47

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

x2 - 47x + 280 = 0

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

(x - 40 ) (x - 7)

To summarize, since -40 and -7 multiply to 280 and add up -47, you know that the following is true:

x2 - 47x + 280 = (x - 40 ) (x - 7)


Multiply To One Number and Add Up To Another
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