解
1、f(x)-g(x)
=loga (x+1)-loga (4-2x)
=loga [(x+1)/(4-2x)]
解不等式 (x+1)/(4-2x)>0得
(x+1)(4-2x)>0
-10
loga [(x+1)/(4-2x)]>0
当a>1时,此不等式等价于:
(x+1)(4-2x)>1
即2x^2-2x-3
解
1、f(x)-g(x)
=loga (x+1)-loga (4-2x)
=loga [(x+1)/(4-2x)]
解不等式 (x+1)/(4-2x)>0得
(x+1)(4-2x)>0
-10
loga [(x+1)/(4-2x)]>0
当a>1时,此不等式等价于:
(x+1)(4-2x)>1
即2x^2-2x-3