What two numbers multiply to 891 and add up to 108?

Here we answer the question: "What two numbers multiply to 891 and add up to 108?"

The answer to your question is:

9 and 99

Below we illustrate and prove that 9 and 99 multiply to 891 and add up to 108:

9 × 99 = 891
9 + 99 = 108

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

x² + 108x + 891 = 0

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

(x + 9 ) (x + 99)

To summarize, since 9 and 99 multiply to 891 and add up 108, you know that the following is true:

x² + 108x + 891 = (x + 9 ) (x + 99)

Multiply To One Number and Add Up To Another
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