What two numbers multiply to -63 and add up to -2?




Here we answer the question: "What two numbers multiply to -63 and add up to -2?"

The answer to your question is:

-9 and 7


Below we illustrate and prove that -9 and 7 multiply to -63 and add up to -2:

-9 × 7 = -63
-9 + 7 = -2

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

x2 - 2x - 63 = 0

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

(x - 9 ) (x + 7)

To summarize, since -9 and 7 multiply to -63 and add up -2, you know that the following is true:

x2 - 2x - 63 = (x - 9 ) (x + 7)


Multiply To One Number and Add Up To Another
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