What two numbers multiply to -690 and add up to 59?

Here we answer the question: "What two numbers multiply to -690 and add up to 59?"

The answer to your question is:

-10 and 69

Below we illustrate and prove that -10 and 69 multiply to -690 and add up to 59:

-10 × 69 = -690
-10 + 69 = 59

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

x² + 59x - 690 = 0

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

(x - 10 ) (x + 69)

To summarize, since -10 and 69 multiply to -690 and add up 59, you know that the following is true:

x² + 59x - 690 = (x - 10 ) (x + 69)

Multiply To One Number and Add Up To Another
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