f(x)=4x^2-2(p-2)x-2p^2-p+1=4(x-p/4+1/2)^2-9p^2/4
(1)对称轴 x=p/4-1/2 当x=p/4-1/2≥1时 p≥6
则 f(-1)>0 f(-1)=-(2p^2-p-1)>0
那么 -1/2