What two numbers multiply to 770 and add up to 81?

Here we answer the question: "What two numbers multiply to 770 and add up to 81?"

The answer to your question is:

11 and 70

Below we illustrate and prove that 11 and 70 multiply to 770 and add up to 81:

11 × 70 = 770
11 + 70 = 81

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

x² + 81x + 770 = 0

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

(x + 11 ) (x + 70)

To summarize, since 11 and 70 multiply to 770 and add up 81, you know that the following is true:

x² + 81x + 770 = (x + 11 ) (x + 70)

Multiply To One Number and Add Up To Another
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