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:

4 and 168

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

4 × 168 = 672
4 + 168 = 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 + 4 ) (x + 168)

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

x² + 172x + 672 = (x + 4 ) (x + 168)

Multiply To One Number and Add Up To Another
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