What two numbers multiply to -840 and add up to 58?

Here we answer the question: "What two numbers multiply to -840 and add up to 58?"

The answer to your question is:

-12 and 70

Below we illustrate and prove that -12 and 70 multiply to -840 and add up to 58:

-12 × 70 = -840
-12 + 70 = 58

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

x² + 58x - 840 = 0

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

(x - 12 ) (x + 70)

To summarize, since -12 and 70 multiply to -840 and add up 58, you know that the following is true:

x² + 58x - 840 = (x - 12 ) (x + 70)

Multiply To One Number and Add Up To Another
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