What two numbers multiply to 77 and add up to 18?

Here we answer the question: "What two numbers multiply to 77 and add up to 18?"

The answer to your question is:

7 and 11

Below we illustrate and prove that 7 and 11 multiply to 77 and add up to 18:

7 × 11 = 77
7 + 11 = 18

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

x² + 18x + 77 = 0

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

(x + 7 ) (x + 11)

To summarize, since 7 and 11 multiply to 77 and add up 18, you know that the following is true:

x² + 18x + 77 = (x + 7 ) (x + 11)

Multiply To One Number and Add Up To Another
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