Here we answer the question: "What two numbers multiply to -665 and add up to -16?"
The answer to your question is:
-35 and 19
Below we illustrate and prove that -35 and 19 multiply to -665 and add up to -16:
-35 × 19 = -665
-35 + 19 = -16
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 16x - 665 = 0
If so, the solution to factor the quadratic equation above is:
(x - 35 ) (x + 19)
To summarize, since -35 and 19 multiply to -665 and add up -16, you know that the following is true:
x2 - 16x - 665 = (x - 35 ) (x + 19)
Multiply To One Number and Add Up To Another
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