Here we answer the question: "What two numbers multiply to 854 and add up to -129?"
The answer to your question is:
-122 and -7
Below we illustrate and prove that -122 and -7 multiply to 854 and add up to -129:
-122 × -7 = 854
-122 + -7 = -129
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 129x + 854 = 0
If so, the solution to factor the quadratic equation above is:
(x - 122 ) (x - 7)
To summarize, since -122 and -7 multiply to 854 and add up -129, you know that the following is true:
x2 - 129x + 854 = (x - 122 ) (x - 7)
Multiply To One Number and Add Up To Another
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