What two numbers multiply to -657 and add up to -216?

Here we answer the question: "What two numbers multiply to -657 and add up to -216?"

The answer to your question is:

-219 and 3

Below we illustrate and prove that -219 and 3 multiply to -657 and add up to -216:

-219 × 3 = -657
-219 + 3 = -216

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

x² - 216x - 657 = 0

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

(x - 219 ) (x + 3)

To summarize, since -219 and 3 multiply to -657 and add up -216, you know that the following is true:

x² - 216x - 657 = (x - 219 ) (x + 3)

Multiply To One Number and Add Up To Another
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