(3a/8)-(2/a+1)

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Solution for (3a/8)-(2/a+1) equation: 


D( a )

a = 0

a = 0

a = 0

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

(3*a)/8-(2/a)-1 = 0

(3*a)/8-2*a^-1-1 = 0

3/8*a^1-2*a^-1-1*a^0 = 0

(3/8*a^2-1*a^1-2*a^0)/(a^1) = 0 // * a^2

a^1*(3/8*a^2-1*a^1-2*a^0) = 0

a^1

(3/8)*a^2-a-2 = 0

(3/8)*a^2-a-2 = 0

DELTA = (-1)^2-(-2*4*(3/8))

DELTA = 4

DELTA > 0

a = (4^(1/2)+1)/(2*(3/8)) or a = (1-4^(1/2))/(2*(3/8))

a = 4 or a = -4/3

a in { -4/3, 4} 

a in { -4/3, 4 }

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