What two numbers multiply to 816 and add up to -80?




Here we answer the question: "What two numbers multiply to 816 and add up to -80?"

The answer to your question is:

-68 and -12


Below we illustrate and prove that -68 and -12 multiply to 816 and add up to -80:

-68 × -12 = 816
-68 + -12 = -80

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

x2 - 80x + 816 = 0

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

(x - 68 ) (x - 12)

To summarize, since -68 and -12 multiply to 816 and add up -80, you know that the following is true:

x2 - 80x + 816 = (x - 68 ) (x - 12)


Multiply To One Number and Add Up To Another
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