7-x/x^2-49

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Solution for 7-x/x^2-49 equation: 


D( x )

x^2 = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

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

7-(x/(x^2))-49 = 0

7-x^-1-49 = 0

-1*x^-1 = 42 // : -1

x^-1 = -42

-1 < 0

1/(x^1) = -42 // * x^1

1 = -42*x^1 // : -42

-1/42 = x^1

x = -1/42

x = -1/42

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