Question 742263
2z-1/z+2 > 1
(2Z*Z-1)/Z+2>1
(2Z^2-1)/Z>1-2
(2Z^2-1)/Z>-1 CROSS MULTIPLY.
2Z^2-1>-Z
2Z^2+Z-1>0
(2Z-1)(Z+1)>0 
2Z-1>0
2Z>1
Z>1/2 ANS.
Z+1>0
Z>-1 ANS.