What two numbers multiply to 656 and add up to -90?




Here we answer the question: "What two numbers multiply to 656 and add up to -90?"

The answer to your question is:

-82 and -8


Below we illustrate and prove that -82 and -8 multiply to 656 and add up to -90:

-82 × -8 = 656
-82 + -8 = -90

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

x2 - 90x + 656 = 0

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

(x - 82 ) (x - 8)

To summarize, since -82 and -8 multiply to 656 and add up -90, you know that the following is true:

x2 - 90x + 656 = (x - 82 ) (x - 8)


Multiply To One Number and Add Up To Another
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