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:

-45 and -21

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

-45 × -21 = 945
-45 + -21 = -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 - 45 ) (x - 21)

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

x² - 66x + 945 = (x - 45 ) (x - 21)

Multiply To One Number and Add Up To Another
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