x²/2-xx²-x
∵k>1
∴列不等式组
2x-1>0①
(x²-x)/ (2x-1)>1②
解① x>1/2
解②x²-x>2x-1
x²-3x+1>0
(x-3/2)²-5/4>0
∴x-3/2>(5^0.5)/2或x-3/2(3+5^0.5)/2 x(3+5^0.5)/2
x²/2-xx²-x
∵k>1
∴列不等式组
2x-1>0①
(x²-x)/ (2x-1)>1②
解① x>1/2
解②x²-x>2x-1
x²-3x+1>0
(x-3/2)²-5/4>0
∴x-3/2>(5^0.5)/2或x-3/2(3+5^0.5)/2 x(3+5^0.5)/2