Here we answer the question: "What two numbers multiply to 729 and add up to -730?"
The answer to your question is:
-729 and -1
Below we illustrate and prove that -729 and -1 multiply to 729 and add up to -730:
-729 × -1 = 729
-729 + -1 = -730
Are you asking because you are trying to figure out how to factor the following quadratic equation?
x2 - 730x + 729 = 0
If so, the solution to factor the quadratic equation above is:
(x - 729 ) (x - 1)
To summarize, since -729 and -1 multiply to 729 and add up -730, you know that the following is true:
x2 - 730x + 729 = (x - 729 ) (x - 1)
Multiply To One Number and Add Up To Another
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