What two numbers multiply to -847 and add up to 66?

Here we answer the question: "What two numbers multiply to -847 and add up to 66?"

The answer to your question is:

-11 and 77

Below we illustrate and prove that -11 and 77 multiply to -847 and add up to 66:

-11 × 77 = -847
-11 + 77 = 66

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

x² + 66x - 847 = 0

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

(x - 11 ) (x + 77)

To summarize, since -11 and 77 multiply to -847 and add up 66, you know that the following is true:

x² + 66x - 847 = (x - 11 ) (x + 77)

Multiply To One Number and Add Up To Another
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