(7x^2+1)/(7x)

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Solution for (7x^2+1)/(7x) equation: 


D( x )

7*x = 0

7*x = 0

7*x = 0

7*x = 0 // : 7

x = 0

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

(7*x^2+1)/(7*x) = 0

7*x^2 = -1 // : 7

x^2 = -1/7

x belongs to the empty set

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