Here we answer the question: "What two numbers multiply to -381 and add up to 124?"
The answer to your question is:
-3 and 127
Below we illustrate and prove that -3 and 127 multiply to -381 and add up to 124:
-3 × 127 = -381
-3 + 127 = 124
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 124x - 381 = 0
If so, the solution to factor the quadratic equation above is:
(x - 3 ) (x + 127)
To summarize, since -3 and 127 multiply to -381 and add up 124, you know that the following is true:
x2 + 124x - 381 = (x - 3 ) (x + 127)
Multiply To One Number and Add Up To Another
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