What two numbers multiply to -715 and add up to 138?

Here we answer the question: "What two numbers multiply to -715 and add up to 138?"

The answer to your question is:

-5 and 143

Below we illustrate and prove that -5 and 143 multiply to -715 and add up to 138:

-5 × 143 = -715
-5 + 143 = 138

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

x² + 138x - 715 = 0

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

(x - 5 ) (x + 143)

To summarize, since -5 and 143 multiply to -715 and add up 138, you know that the following is true:

x² + 138x - 715 = (x - 5 ) (x + 143)

Multiply To One Number and Add Up To Another
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