-1.5x+(4/9)=-x^2

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Solution for -1.5x+(4/9)=-x^2 equation: 


x in (-oo:+oo)

4/9-1.5*x = (-x)^2 // - (-x)^2

4/9-(-x)^2-1.5*x = 0

4/9-x^2-1.5*x = 0

4/9-x^2-1.5*x = 0

DELTA = (-1.5)^2-(-1*4/9*4)

DELTA = 1.5^2+16/9

DELTA = 4.02777778

DELTA > 0

x = ((1.5^2+16/9)^(1/2)+1.5)/(-1*2) or x = (1.5-(1.5^2+16/9)^(1/2))/(-1*2)

x = ((1.5^2+16/9)^(1/2)+1.5)/(-2) or x = (1.5-(1.5^2+16/9)^(1/2))/(-2)

x in { ((1.5^2+16/9)^(1/2)+1.5)/(-2), (1.5-(1.5^2+16/9)^(1/2))/(-2) }

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