What two numbers multiply to -800 and add up to 155?

Here we answer the question: "What two numbers multiply to -800 and add up to 155?"

The answer to your question is:

-5 and 160

Below we illustrate and prove that -5 and 160 multiply to -800 and add up to 155:

-5 × 160 = -800
-5 + 160 = 155

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

x² + 155x - 800 = 0

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

(x - 5 ) (x + 160)

To summarize, since -5 and 160 multiply to -800 and add up 155, you know that the following is true:

x² + 155x - 800 = (x - 5 ) (x + 160)

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.