Here we answer the question: "What two numbers multiply to -396 and add up to -60?"
The answer to your question is:
-66 and 6
Below we illustrate and prove that -66 and 6 multiply to -396 and add up to -60:
-66 × 6 = -396
-66 + 6 = -60
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 60x - 396 = 0
If so, the solution to factor the quadratic equation above is:
(x - 66 ) (x + 6)
To summarize, since -66 and 6 multiply to -396 and add up -60, you know that the following is true:
x2 - 60x - 396 = (x - 66 ) (x + 6)
Multiply To One Number and Add Up To Another
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