What two numbers multiply to 215 and add up to -216?

Here we answer the question: "What two numbers multiply to 215 and add up to -216?"

The answer to your question is:

-215 and -1

Below we illustrate and prove that -215 and -1 multiply to 215 and add up to -216:

-215 × -1 = 215
-215 + -1 = -216

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

x² - 216x + 215 = 0

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

(x - 215 ) (x - 1)

To summarize, since -215 and -1 multiply to 215 and add up -216, you know that the following is true:

x² - 216x + 215 = (x - 215 ) (x - 1)

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.