What two numbers multiply to -215 and add up to 38?




Here we answer the question: "What two numbers multiply to -215 and add up to 38?"

The answer to your question is:

-5 and 43


Below we illustrate and prove that -5 and 43 multiply to -215 and add up to 38:

-5 × 43 = -215
-5 + 43 = 38

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

x2 + 38x - 215 = 0

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

(x - 5 ) (x + 43)

To summarize, since -5 and 43 multiply to -215 and add up 38, you know that the following is true:

x2 + 38x - 215 = (x - 5 ) (x + 43)


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