What two numbers multiply to 81 and add up to 82?

Here we answer the question: "What two numbers multiply to 81 and add up to 82?"

The answer to your question is:

1 and 81

Below we illustrate and prove that 1 and 81 multiply to 81 and add up to 82:

1 × 81 = 81
1 + 81 = 82

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

x² + 82x + 81 = 0

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

(x + 1 ) (x + 81)

To summarize, since 1 and 81 multiply to 81 and add up 82, you know that the following is true:

x² + 82x + 81 = (x + 1 ) (x + 81)

Multiply To One Number and Add Up To Another
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