What two numbers multiply to -672 and add up to 76?




Here we answer the question: "What two numbers multiply to -672 and add up to 76?"

The answer to your question is:

-8 and 84


Below we illustrate and prove that -8 and 84 multiply to -672 and add up to 76:

-8 × 84 = -672
-8 + 84 = 76

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

x2 + 76x - 672 = 0

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

(x - 8 ) (x + 84)

To summarize, since -8 and 84 multiply to -672 and add up 76, you know that the following is true:

x2 + 76x - 672 = (x - 8 ) (x + 84)


Multiply To One Number and Add Up To Another
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