What two numbers multiply to 198 and add up to -31?




Here we answer the question: "What two numbers multiply to 198 and add up to -31?"

The answer to your question is:

-22 and -9


Below we illustrate and prove that -22 and -9 multiply to 198 and add up to -31:

-22 × -9 = 198
-22 + -9 = -31

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

x2 - 31x + 198 = 0

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

(x - 22 ) (x - 9)

To summarize, since -22 and -9 multiply to 198 and add up -31, you know that the following is true:

x2 - 31x + 198 = (x - 22 ) (x - 9)


Multiply To One Number and Add Up To Another
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