Here we answer the question: "What two numbers multiply to -811 and add up to -810?"
The answer to your question is:
-811 and 1
Below we illustrate and prove that -811 and 1 multiply to -811 and add up to -810:
-811 × 1 = -811
-811 + 1 = -810
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 810x - 811 = 0
If so, the solution to factor the quadratic equation above is:
(x - 811 ) (x + 1)
To summarize, since -811 and 1 multiply to -811 and add up -810, you know that the following is true:
x2 - 810x - 811 = (x - 811 ) (x + 1)
Multiply To One Number and Add Up To Another
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