What two numbers multiply to 648 and add up to 66?




Here we answer the question: "What two numbers multiply to 648 and add up to 66?"

The answer to your question is:

12 and 54


Below we illustrate and prove that 12 and 54 multiply to 648 and add up to 66:

12 × 54 = 648
12 + 54 = 66

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

x2 + 66x + 648 = 0

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

(x + 12 ) (x + 54)

To summarize, since 12 and 54 multiply to 648 and add up 66, you know that the following is true:

x2 + 66x + 648 = (x + 12 ) (x + 54)


Multiply To One Number and Add Up To Another
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