What two numbers multiply to 672 and add up to -172?

Here we answer the question: "What two numbers multiply to 672 and add up to -172?"

The answer to your question is:

-168 and -4

Below we illustrate and prove that -168 and -4 multiply to 672 and add up to -172:

-168 × -4 = 672
-168 + -4 = -172

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

x² - 172x + 672 = 0

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

(x - 168 ) (x - 4)

To summarize, since -168 and -4 multiply to 672 and add up -172, you know that the following is true:

x² - 172x + 672 = (x - 168 ) (x - 4)

Multiply To One Number and Add Up To Another
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