What two numbers multiply to 810 and add up to 69?

Here we answer the question: "What two numbers multiply to 810 and add up to 69?"

The answer to your question is:

15 and 54

Below we illustrate and prove that 15 and 54 multiply to 810 and add up to 69:

15 × 54 = 810
15 + 54 = 69

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

x² + 69x + 810 = 0

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

(x + 15 ) (x + 54)

To summarize, since 15 and 54 multiply to 810 and add up 69, you know that the following is true:

x² + 69x + 810 = (x + 15 ) (x + 54)

Multiply To One Number and Add Up To Another
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