What two numbers multiply to -945 and add up to -128?

Here we answer the question: "What two numbers multiply to -945 and add up to -128?"

The answer to your question is:

-135 and 7

Below we illustrate and prove that -135 and 7 multiply to -945 and add up to -128:

-135 × 7 = -945
-135 + 7 = -128

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

x² - 128x - 945 = 0

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

(x - 135 ) (x + 7)

To summarize, since -135 and 7 multiply to -945 and add up -128, you know that the following is true:

x² - 128x - 945 = (x - 135 ) (x + 7)

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.