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:

-160 and 5

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

-160 × 5 = -800
-160 + 5 = -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 - 160 ) (x + 5)

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

x² - 155x - 800 = (x - 160 ) (x + 5)

Multiply To One Number and Add Up To Another
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