2/3a-2/a^2

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Solution for 2/3a-2/a^2 equation: 


D( a )

a^2 = 0

a^2 = 0

a^2 = 0

1*a^2 = 0 // : 1

a^2 = 0

a = 0

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

(2/3)*a-(2/(a^2)) = 0

(2/3)*a-2*a^-2 = 0

2/3*a-2*a^-2 = 0

2*a*(1/3-a^-3) = 0

-1*a^-3 = -1/3 // : -1

a^-3 = 1/3

-3 < 0

1/(a^3) = 1/3 // * a^3

1 = 1/3*a^3 // : 1/3

3 = a^3

a^3 = 3 // ^ 1/3

a = 3^(1/3)

2*a = 0

2*a = 0 // : 2

a = 0

a in { 0} 

a = 3^(1/3)

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