What two numbers multiply to 668 and add up to 669?

Here we answer the question: "What two numbers multiply to 668 and add up to 669?"

The answer to your question is:

1 and 668

Below we illustrate and prove that 1 and 668 multiply to 668 and add up to 669:

1 × 668 = 668
1 + 668 = 669

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

x² + 669x + 668 = 0

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

(x + 1 ) (x + 668)

To summarize, since 1 and 668 multiply to 668 and add up 669, you know that the following is true:

x² + 669x + 668 = (x + 1 ) (x + 668)

Multiply To One Number and Add Up To Another
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