1/2h^2-1/2h-15=0

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Solution for 1/2h^2-1/2h-15=0 equation: 


h in (-oo:+oo)

(1/2)*h^2-((1/2)*h)-15 = 0

(1/2)*h^2+(-1/2)*h-15 = 0

1/2*h^2-1/2*h-15 = 0

DELTA = (-1/2)^2-(-15*1/2*4)

DELTA = 121/4

DELTA > 0

h = ((121/4)^(1/2)+1/2)/(1/2*2) or h = (1/2-(121/4)^(1/2))/(1/2*2)

h = 6 or h = -5

h in { -5, 6 }

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