Giải các bất phương trình sau

a/ (x+1).(x-1).(3x-6)>0

b/ \(\dfrac{x+3}{x-2}\le0\)

c/ \(\dfrac{\left(2x-5\right).\left(x+2\right)}{-4x+3}\ge0\)

d/ \(\dfrac{2x-5}{3x+2}< \dfrac{3x+2}{2x-5}\)

e/ \(\dfrac{2x^2+x}{1-2x}\ge1-x\)

f/ \(\dfrac{\left(2+x\right)^5.\left(x+1\right).\left(3-x\right)^{11}}{\left(2-x\right).\left(1-x\right)^{20}}\le0\)

Giải các bất phương trình sau

a/ (x+1).(x-1).(3x-6)>0

b/ \(\dfrac{x+3}{x-2}\le0\)

c/ \(\dfrac{\left(2x-5\right).\left(x+2\right)}{-4x+3}\ge0\)

d/ \(\dfrac{2x-5}{3x+2}< \dfrac{3x+2}{2x-5}\)

e/ \(\dfrac{2x^2+x}{1-2x}\ge1-x\)

f/ \(\dfrac{\left(2+x\right)^5.\left(x+1\right).\left(3-x\right)^{11}}{\left(2-x\right).\left(1-x\right)^{20}}\le0\)