20-x^2/x - solution

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Solution for 20-x^2/x equation:

D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

20-((x^2)/x) = 0

20-x = 0

20-x = 0 // - 20

-x = -20 // * -1

x = 20

x = 20

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