Here we answer the question: "What two numbers multiply to -615 and add up to 614?"
The answer to your question is:
-1 and 615
Below we illustrate and prove that -1 and 615 multiply to -615 and add up to 614:
-1 × 615 = -615
-1 + 615 = 614
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 + 614x - 615 = 0
If so, the solution to factor the quadratic equation above is:
(x - 1 ) (x + 615)
To summarize, since -1 and 615 multiply to -615 and add up 614, you know that the following is true:
x2 + 614x - 615 = (x - 1 ) (x + 615)
Multiply To One Number and Add Up To Another
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