What two numbers multiply to -840 and add up to 134?

Here we answer the question: "What two numbers multiply to -840 and add up to 134?"

The answer to your question is:

-6 and 140

Below we illustrate and prove that -6 and 140 multiply to -840 and add up to 134:

-6 × 140 = -840
-6 + 140 = 134

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

x² + 134x - 840 = 0

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

(x - 6 ) (x + 140)

To summarize, since -6 and 140 multiply to -840 and add up 134, you know that the following is true:

x² + 134x - 840 = (x - 6 ) (x + 140)

Multiply To One Number and Add Up To Another
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