What two numbers multiply to -140 and add up to 23?




Here we answer the question: "What two numbers multiply to -140 and add up to 23?"

The answer to your question is:

-5 and 28


Below we illustrate and prove that -5 and 28 multiply to -140 and add up to 23:

-5 × 28 = -140
-5 + 28 = 23

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

x2 + 23x - 140 = 0

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

(x - 5 ) (x + 28)

To summarize, since -5 and 28 multiply to -140 and add up 23, you know that the following is true:

x2 + 23x - 140 = (x - 5 ) (x + 28)


Multiply To One Number and Add Up To Another
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