What two numbers multiply to -616 and add up to 81?

Here we answer the question: "What two numbers multiply to -616 and add up to 81?"

The answer to your question is:

-7 and 88

Below we illustrate and prove that -7 and 88 multiply to -616 and add up to 81:

-7 × 88 = -616
-7 + 88 = 81

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

x² + 81x - 616 = 0

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

(x - 7 ) (x + 88)

To summarize, since -7 and 88 multiply to -616 and add up 81, you know that the following is true:

x² + 81x - 616 = (x - 7 ) (x + 88)

Multiply To One Number and Add Up To Another
Did you find the information on this page useful? Here you can solve a similar problem.