设f(x)=ax^+2ax-4,且f(x)＜0 对一切x属于R恒成立,求实数a的取值范围.3Q``

设f(x)=x^2+ax+b,且0 1）设f(x)=ax2+2ax-4,且f(x) 设f(x)=ax^2+bx且-1 设f(x)=ax+b,且f(0)=-2,f(3)=4,则f(-2)=_______. 设f(x)=ax+b,且f(0)=-2,f(3)=4,则f(-2)=_______. 设函数f(x)=ax+2,不等式｜f(x)｜ 设f(X)=x2+ax+b,且1 设f(x)=ax的平方+bx,且1 设f(x)=x^5+ax^3+bx-8,且f(-2)=10,则f(x)= 设函数f(x)=ax^2+bx+c((a≠0),满足f(x+1)=f(-x-3),且f(-2)>f(2),解不等式f(-2x^2+2x-3)>f(x^2+4x+3) 设函数f(x+1)=ax+1,且f(2)=3,则a= f(x)=ax+b,且f(f(x))=4x-1,求f(x) 设f(x) = ax^3 +b sin x +2 ,且f( -1) =17 ,则 f(1) 设函数f(x)=2ax(平方)-ax,f(x)=-6,则a= 已知f(x)=ax^2+c,且-4 f(x)=ax²-ax-4 设函数f(x)=ax 设曲线f(x)=ax+ln(2-x)求导