(Ⅰ)∵f(x)=(x2+x-1)ex,∴f′(x)=(2x+1)ex+(x2+x-1)ex=(x2+3x)ex,∴k=f′(1)=4e,∵f(1)=e,∴所求切线方程为:4ex-y-3e=0,(Ⅱ)∵f(x)=(-x2+x-1)ex,∴f′(x)=-x(x+1)ex,令f′(x)<0,解得:x<-1,x>0,令f′x)>0,解得:-1<x<0,∴f(x)的减区间为(-∞,-1),(0,+∞),增区间为(-1,0).