Here we answer the question: "What two numbers multiply to -160 and add up to -12?"
The answer to your question is:
-20 and 8
Below we illustrate and prove that -20 and 8 multiply to -160 and add up to -12:
-20 × 8 = -160
-20 + 8 = -12
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 12x - 160 = 0
If so, the solution to factor the quadratic equation above is:
(x - 20 ) (x + 8)
To summarize, since -20 and 8 multiply to -160 and add up -12, you know that the following is true:
x2 - 12x - 160 = (x - 20 ) (x + 8)
Multiply To One Number and Add Up To Another
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