What two numbers multiply to 645 and add up to 134?

Here we answer the question: "What two numbers multiply to 645 and add up to 134?"

The answer to your question is:

5 and 129

Below we illustrate and prove that 5 and 129 multiply to 645 and add up to 134:

5 × 129 = 645
5 + 129 = 134

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

x² + 134x + 645 = 0

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

(x + 5 ) (x + 129)

To summarize, since 5 and 129 multiply to 645 and add up 134, you know that the following is true:

x² + 134x + 645 = (x + 5 ) (x + 129)

Multiply To One Number and Add Up To Another
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