What two numbers multiply to 378 and add up to -51?




Here we answer the question: "What two numbers multiply to 378 and add up to -51?"

The answer to your question is:

-42 and -9


Below we illustrate and prove that -42 and -9 multiply to 378 and add up to -51:

-42 × -9 = 378
-42 + -9 = -51

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

x2 - 51x + 378 = 0

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

(x - 42 ) (x - 9)

To summarize, since -42 and -9 multiply to 378 and add up -51, you know that the following is true:

x2 - 51x + 378 = (x - 42 ) (x - 9)


Multiply To One Number and Add Up To Another
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