x=-4x^2/4

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Solution for x=-4x^2/4 equation: 


x in (-oo:+oo)

x = (-4*x^2)/4 // - (-4*x^2)/4

x-((-4*x^2)/4) = 0

x^2+x = 0

x^2+x = 0

DELTA = 1^2-(0*1*4)

DELTA = 1

DELTA > 0

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

x = 0 or x = -1

x in { -1, 0 }

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