What two numbers multiply to -351 and add up to -30?




Here we answer the question: "What two numbers multiply to -351 and add up to -30?"

The answer to your question is:

-39 and 9


Below we illustrate and prove that -39 and 9 multiply to -351 and add up to -30:

-39 × 9 = -351
-39 + 9 = -30

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

x2 - 30x - 351 = 0

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

(x - 39 ) (x + 9)

To summarize, since -39 and 9 multiply to -351 and add up -30, you know that the following is true:

x2 - 30x - 351 = (x - 39 ) (x + 9)


Multiply To One Number and Add Up To Another
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