5-a-1/a+2=a^2-1/a+2

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Solution for 5-a-1/a+2=a^2-1/a+2 equation: 


D( a )

a = 0

a = 0

a = 0

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

2-a-(1/a)+5 = a^2-(1/a)+2 // - a^2-(1/a)+2

1/a-a^2-a-(1/a)-2+2+5 = 0

1/a-a^2-a-a^-1-2+2+5 = 0

5-a^2-a = 0

DELTA = (-1)^2-(-1*4*5)

DELTA = 21

DELTA > 0

a = (21^(1/2)+1)/(-1*2) or a = (1-21^(1/2))/(-1*2)

a = (21^(1/2)+1)/(-2) or a = (1-21^(1/2))/(-2)

a in { (21^(1/2)+1)/(-2), (1-21^(1/2))/(-2) }

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