What two numbers multiply to -428 and add up to -212?

Here we answer the question: "What two numbers multiply to -428 and add up to -212?"

The answer to your question is:

-214 and 2

Below we illustrate and prove that -214 and 2 multiply to -428 and add up to -212:

-214 × 2 = -428
-214 + 2 = -212

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

x² - 212x - 428 = 0

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

(x - 214 ) (x + 2)

To summarize, since -214 and 2 multiply to -428 and add up -212, you know that the following is true:

x² - 212x - 428 = (x - 214 ) (x + 2)

Multiply To One Number and Add Up To Another
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