What two numbers multiply to -336 and add up to 80?

Here we answer the question: "What two numbers multiply to -336 and add up to 80?"

The answer to your question is:

-4 and 84

Below we illustrate and prove that -4 and 84 multiply to -336 and add up to 80:

-4 × 84 = -336
-4 + 84 = 80

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

x² + 80x - 336 = 0

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

(x - 4 ) (x + 84)

To summarize, since -4 and 84 multiply to -336 and add up 80, you know that the following is true:

x² + 80x - 336 = (x - 4 ) (x + 84)

Multiply To One Number and Add Up To Another
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