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x in (-oo:+oo)
2-((x/6)*x)-4 < 3 // - 3
2-((x/6)*x)-4-3 < 0
(-1/6)*x^2-4-3+2 < 0
-1/6*x^2 < 5
-1/6*x^2 < 5 // * -1
1/6*x^2 > -5
1/6*x^2 > -5 // : 1/6
x^2 > -5/1/6
x^2 > -30
x in (-oo:+oo)
x in (-oo:+oo)
(-oo:+oo)
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