Here we answer the question: "What two numbers multiply to 252 and add up to -128?"
The answer to your question is:
-126 and -2
Below we illustrate and prove that -126 and -2 multiply to 252 and add up to -128:
-126 × -2 = 252
-126 + -2 = -128
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 128x + 252 = 0
If so, the solution to factor the quadratic equation above is:
(x - 126 ) (x - 2)
To summarize, since -126 and -2 multiply to 252 and add up -128, you know that the following is true:
x2 - 128x + 252 = (x - 126 ) (x - 2)
Multiply To One Number and Add Up To Another
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