[tex]6x^5 - 9x^4 + 4x^3 - 6x^2 > 0\\\\3x^4(2x - 3) + 2x^2(2x - 3) > 0\\\\(3x^4 + 2x^2)(2x - 3) > 0\\\\x^2(3x^2 + 2)(2x - 3) > 0\\\\x^2 = 0 = > x = 0 \\3x^2 + 2 = 0 \\2x - 3 = 0 = > x = 1,5[/tex]
x ∈ (1,5 ; + ∞)
:)
