What two numbers multiply to 945 and add up to 66?

Here we answer the question: "What two numbers multiply to 945 and add up to 66?"

The answer to your question is:

21 and 45

Below we illustrate and prove that 21 and 45 multiply to 945 and add up to 66:

21 × 45 = 945
21 + 45 = 66

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

x² + 66x + 945 = 0

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

(x + 21 ) (x + 45)

To summarize, since 21 and 45 multiply to 945 and add up 66, you know that the following is true:

x² + 66x + 945 = (x + 21 ) (x + 45)

Multiply To One Number and Add Up To Another
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