What two numbers multiply to -648 and add up to 158?

Here we answer the question: "What two numbers multiply to -648 and add up to 158?"

The answer to your question is:

-4 and 162

Below we illustrate and prove that -4 and 162 multiply to -648 and add up to 158:

-4 × 162 = -648
-4 + 162 = 158

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

x² + 158x - 648 = 0

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

(x - 4 ) (x + 162)

To summarize, since -4 and 162 multiply to -648 and add up 158, you know that the following is true:

x² + 158x - 648 = (x - 4 ) (x + 162)

Multiply To One Number and Add Up To Another
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