(-8x^2+4)/(2x^2+1)^2

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Solution for (-8x^2+4)/(2x^2+1)^2 equation: 


D( x )

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

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

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

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

x^2 = -1/2

x in (-oo:+oo)

(4-8*x^2)/((2*x^2+1)^2) = 0

-8*x^2 = -4 // : -8

x^2 = 1/2

x^2 = 1/2 // ^ 1/2

abs(x) = (1/2)^(1/2)

x = (1/2)^(1/2) or x = -(1/2)^(1/2)

x in { (1/2)^(1/2), -(1/2)^(1/2) }

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