Here we answer the question: "What two numbers multiply to -990 and add up to -3?"
The answer to your question is:
-33 and 30
Below we illustrate and prove that -33 and 30 multiply to -990 and add up to -3:
-33 × 30 = -990
-33 + 30 = -3
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 3x - 990 = 0
If so, the solution to factor the quadratic equation above is:
(x - 33 ) (x + 30)
To summarize, since -33 and 30 multiply to -990 and add up -3, you know that the following is true:
x2 - 3x - 990 = (x - 33 ) (x + 30)
Multiply To One Number and Add Up To Another
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