Here we answer the question: "What two numbers multiply to 878 and add up to -879?"
The answer to your question is:
-878 and -1
Below we illustrate and prove that -878 and -1 multiply to 878 and add up to -879:
-878 × -1 = 878
-878 + -1 = -879
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 879x + 878 = 0
If so, the solution to factor the quadratic equation above is:
(x - 878 ) (x - 1)
To summarize, since -878 and -1 multiply to 878 and add up -879, you know that the following is true:
x2 - 879x + 878 = (x - 878 ) (x - 1)
Multiply To One Number and Add Up To Another
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