Question

$-6x-6x+9x^{2}\ \textgreater \ 5$

Answer 1

-6x - 6x + 9x^2 > 5

9x^2 - 12x - 5 > 0 

(3x - 5 ) ( 3x + 1 ) > 0

Intersecciones 
3x - 5 > 0 : x > 5/3
3x - 5 < 0   x < 5/3

3x +1 > 0 : x > -1/3

3x +1 < 0 : x < -1/3

R/ (-  ∞ , -1/3 ) u ( 5/3 ,  ∞ )