What two numbers multiply to 678 and add up to 679?

Here we answer the question: "What two numbers multiply to 678 and add up to 679?"

The answer to your question is:

1 and 678

Below we illustrate and prove that 1 and 678 multiply to 678 and add up to 679:

1 × 678 = 678
1 + 678 = 679

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

x² + 679x + 678 = 0

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

(x + 1 ) (x + 678)

To summarize, since 1 and 678 multiply to 678 and add up 679, you know that the following is true:

x² + 679x + 678 = (x + 1 ) (x + 678)

Multiply To One Number and Add Up To Another
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