4x^2-9x^2+6x-1-1+5x≤0
-5x^2+11x-2≤0
5x^2-11x+2≥0
D=121-40=9^2
x1=(11+9)/10=2
x2=(11-9)/10=0.2
++++[0.2]-----[2]+++
x∈(-∞;0.2]U[2;+∞)
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4x^2-9x^2+6x-1-1+5x≤0
-5x^2+11x-2≤0
5x^2-11x+2≥0
D=121-40=9^2
x1=(11+9)/10=2
x2=(11-9)/10=0.2
++++[0.2]-----[2]+++
x∈(-∞;0.2]U[2;+∞)