What two numbers multiply to -345 and add up to -8?

Here we answer the question: "What two numbers multiply to -345 and add up to -8?"

The answer to your question is:

-23 and 15

Below we illustrate and prove that -23 and 15 multiply to -345 and add up to -8:

-23 × 15 = -345
-23 + 15 = -8

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

x² - 8x - 345 = 0

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

(x - 23 ) (x + 15)

To summarize, since -23 and 15 multiply to -345 and add up -8, you know that the following is true:

x² - 8x - 345 = (x - 23 ) (x + 15)

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.