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H in (-oo:+oo)
(H-(3/4))^2 = 7/16 // - 7/16
(H-(3/4))^2-(7/16) = 0
(H-3/4)^2-7/16 = 0
(16*(H-3/4)^2)/16-7/16 = 0
16*(H-3/4)^2-7 = 0
16*H^2-24*H+2 = 0
16*H^2-24*H+2 = 0
2*(8*H^2-12*H+1) = 0
8*H^2-12*H+1 = 0
DELTA = (-12)^2-(1*4*8)
DELTA = 112
DELTA > 0
H = (112^(1/2)+12)/(2*8) or H = (12-112^(1/2))/(2*8)
H = (4*7^(1/2)+12)/16 or H = (12-4*7^(1/2))/16
2*(H-((12-4*7^(1/2))/16))*(H-((4*7^(1/2)+12)/16)) = 0
(2*(H-((12-4*7^(1/2))/16))*(H-((4*7^(1/2)+12)/16)))/16 = 0
(2*(H-((12-4*7^(1/2))/16))*(H-((4*7^(1/2)+12)/16)))/16 = 0 // * 16
2*(H-((12-4*7^(1/2))/16))*(H-((4*7^(1/2)+12)/16)) = 0
( 2 )
2 = 0
H belongs to the empty set
( H-((12-4*7^(1/2))/16) )
H-((12-4*7^(1/2))/16) = 0 // + (12-4*7^(1/2))/16
H = (12-4*7^(1/2))/16
( H-((4*7^(1/2)+12)/16) )
H-((4*7^(1/2)+12)/16) = 0 // + (4*7^(1/2)+12)/16
H = (4*7^(1/2)+12)/16
H in { (12-4*7^(1/2))/16, (4*7^(1/2)+12)/16 }
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