1/2a+1+2/2a-1=-2/4(a)2-1

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Solution for 1/2a+1+2/2a-1=-2/4(a)2-1 equation: 


a in (-oo:+oo)

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

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

(1/2)*a^2+(1/2)*a+(2/2)*a-1+1+1 = 0

1/2*a^2+3/2*a+1 = 0

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

DELTA = 1/4

DELTA > 0

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

a = -1 or a = -2

a in { -2, -1 }

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