What two numbers multiply to 84 and add up to 85?

Here we answer the question: "What two numbers multiply to 84 and add up to 85?"

The answer to your question is:

1 and 84

Below we illustrate and prove that 1 and 84 multiply to 84 and add up to 85:

1 × 84 = 84
1 + 84 = 85

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

x² + 85x + 84 = 0

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

(x + 1 ) (x + 84)

To summarize, since 1 and 84 multiply to 84 and add up 85, you know that the following is true:

x² + 85x + 84 = (x + 1 ) (x + 84)

Multiply To One Number and Add Up To Another
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