Here we answer the question: "What two numbers multiply to 810 and add up to -57?"
The answer to your question is:
-30 and -27
Below we illustrate and prove that -30 and -27 multiply to 810 and add up to -57:
-30 × -27 = 810
-30 + -27 = -57
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 57x + 810 = 0
If so, the solution to factor the quadratic equation above is:
(x - 30 ) (x - 27)
To summarize, since -30 and -27 multiply to 810 and add up -57, you know that the following is true:
x2 - 57x + 810 = (x - 30 ) (x - 27)
Multiply To One Number and Add Up To Another
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