What two numbers multiply to 221 and add up to -30?

Here we answer the question: "What two numbers multiply to 221 and add up to -30?"

The answer to your question is:

-17 and -13

Below we illustrate and prove that -17 and -13 multiply to 221 and add up to -30:

-17 × -13 = 221
-17 + -13 = -30

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

x² - 30x + 221 = 0

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

(x - 17 ) (x - 13)

To summarize, since -17 and -13 multiply to 221 and add up -30, you know that the following is true:

x² - 30x + 221 = (x - 17 ) (x - 13)

Multiply To One Number and Add Up To Another
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