What two numbers multiply to -630 and add up to 83?




Here we answer the question: "What two numbers multiply to -630 and add up to 83?"

The answer to your question is:

-7 and 90


Below we illustrate and prove that -7 and 90 multiply to -630 and add up to 83:

-7 × 90 = -630
-7 + 90 = 83

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

x2 + 83x - 630 = 0

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

(x - 7 ) (x + 90)

To summarize, since -7 and 90 multiply to -630 and add up 83, you know that the following is true:

x2 + 83x - 630 = (x - 7 ) (x + 90)


Multiply To One Number and Add Up To Another
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