(4x-5)(2+9x)>(6x-1)^2
(4x-5)(2+9x)>(6x-1)^2
8x+36x²-10-45x>36x²-12x+1 -33x-11>0 3x<-1 x<-⅓
4x^3 - 4x^2 - 5x^2 + 5x + x - 1 = 0 -9x^2 and 6x 4x^2(x-1) - 5x(x-1) + (x-1) = 0 = (x-1)(4x^2 - 5x + 1) = 0 = (x-1)(4x-1)(x-1) = 0