Here we answer the question: "What two numbers multiply to 882 and add up to -63?"
The answer to your question is:
-42 and -21
Below we illustrate and prove that -42 and -21 multiply to 882 and add up to -63:
-42 × -21 = 882
-42 + -21 = -63
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 63x + 882 = 0
If so, the solution to factor the quadratic equation above is:
(x - 42 ) (x - 21)
To summarize, since -42 and -21 multiply to 882 and add up -63, you know that the following is true:
x2 - 63x + 882 = (x - 42 ) (x - 21)
Multiply To One Number and Add Up To Another
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