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h in (-oo:+oo)
(h-(3/5))*(h-(3/5)) = 1/2 // - 1/2
(h-(3/5))*(h-(3/5))-(1/2) = 0
(h-3/5)*(h-3/5)-1/2 = 0
(h-3/5)^2-1/2 = 0
(2*(h-3/5)^2)/2-1/2 = 0
2*(h-3/5)^2-1 = 0
2*h^2-12/5*h-7/25 = 0
2*h^2-12/5*h-7/25 = 0
2*h^2-12/5*h-7/25 = 0
DELTA = (-12/5)^2-(-7/25*2*4)
DELTA = 8
DELTA > 0
h = (8^(1/2)+12/5)/(2*2) or h = (12/5-8^(1/2))/(2*2)
h = (2*2^(1/2)+12/5)/4 or h = (12/5-2*2^(1/2))/4
(h-((12/5-2*2^(1/2))/4))*(h-((2*2^(1/2)+12/5)/4)) = 0
((h-((12/5-2*2^(1/2))/4))*(h-((2*2^(1/2)+12/5)/4)))/2 = 0
((h-((12/5-2*2^(1/2))/4))*(h-((2*2^(1/2)+12/5)/4)))/2 = 0 // * 2
(h-((12/5-2*2^(1/2))/4))*(h-((2*2^(1/2)+12/5)/4)) = 0
( h-((12/5-2*2^(1/2))/4) )
h-((12/5-2*2^(1/2))/4) = 0 // + (12/5-2*2^(1/2))/4
h = (12/5-2*2^(1/2))/4
( h-((2*2^(1/2)+12/5)/4) )
h-((2*2^(1/2)+12/5)/4) = 0 // + (2*2^(1/2)+12/5)/4
h = (2*2^(1/2)+12/5)/4
h in { (12/5-2*2^(1/2))/4, (2*2^(1/2)+12/5)/4 }
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