What two numbers multiply to -441 and add up to -40?




Here we answer the question: "What two numbers multiply to -441 and add up to -40?"

The answer to your question is:

-49 and 9


Below we illustrate and prove that -49 and 9 multiply to -441 and add up to -40:

-49 × 9 = -441
-49 + 9 = -40

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

x2 - 40x - 441 = 0

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

(x - 49 ) (x + 9)

To summarize, since -49 and 9 multiply to -441 and add up -40, you know that the following is true:

x2 - 40x - 441 = (x - 49 ) (x + 9)


Multiply To One Number and Add Up To Another
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