What two numbers multiply to -561 and add up to 40?




Here we answer the question: "What two numbers multiply to -561 and add up to 40?"

The answer to your question is:

-11 and 51


Below we illustrate and prove that -11 and 51 multiply to -561 and add up to 40:

-11 × 51 = -561
-11 + 51 = 40

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

x2 + 40x - 561 = 0

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

(x - 11 ) (x + 51)

To summarize, since -11 and 51 multiply to -561 and add up 40, you know that the following is true:

x2 + 40x - 561 = (x - 11 ) (x + 51)


Multiply To One Number and Add Up To Another
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