What two numbers multiply to -169 and add up to 168?

Here we answer the question: "What two numbers multiply to -169 and add up to 168?"

The answer to your question is:

-1 and 169

Below we illustrate and prove that -1 and 169 multiply to -169 and add up to 168:

-1 × 169 = -169
-1 + 169 = 168

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

x² + 168x - 169 = 0

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

(x - 1 ) (x + 169)

To summarize, since -1 and 169 multiply to -169 and add up 168, you know that the following is true:

x² + 168x - 169 = (x - 1 ) (x + 169)

Multiply To One Number and Add Up To Another
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