Here we answer the question: "What two numbers multiply to -486 and add up to -485?"
The answer to your question is:
-486 and 1
Below we illustrate and prove that -486 and 1 multiply to -486 and add up to -485:
-486 × 1 = -486
-486 + 1 = -485
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 485x - 486 = 0
If so, the solution to factor the quadratic equation above is:
(x - 486 ) (x + 1)
To summarize, since -486 and 1 multiply to -486 and add up -485, you know that the following is true:
x2 - 485x - 486 = (x - 486 ) (x + 1)
Multiply To One Number and Add Up To Another
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