Here we answer the question: "What two numbers multiply to -628 and add up to -312?"
The answer to your question is:
-314 and 2
Below we illustrate and prove that -314 and 2 multiply to -628 and add up to -312:
-314 × 2 = -628
-314 + 2 = -312
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 312x - 628 = 0
If so, the solution to factor the quadratic equation above is:
(x - 314 ) (x + 2)
To summarize, since -314 and 2 multiply to -628 and add up -312, you know that the following is true:
x2 - 312x - 628 = (x - 314 ) (x + 2)
Multiply To One Number and Add Up To Another
Did you find the information on this page useful? Here you can solve a similar problem.