What two numbers multiply to 648 and add up to 166?

Here we answer the question: "What two numbers multiply to 648 and add up to 166?"

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 166:

4 × 162 = 648
4 + 162 = 166

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

x² + 166x + 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 166, you know that the following is true:

x² + 166x + 648 = (x + 4 ) (x + 162)

Multiply To One Number and Add Up To Another
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