( |x+4| - |x+2| )(x²+8x-7)≤0
1)x<-4(-x-4+x+2)(x²+8x-7)≤0-2(x²+8x-7)≤0x²+8x-7≥0D=64+28=92x1=(-8-2√23)/2=-4-√23x2=-4+√23x≤-4-√23 U x≥-4+√23x∈(-∞;-4-√23]2)-4≤x≤-2(x+4+x+2)(x²+8x-7)≤0(2x+6)(x²+8x-7)≤0x=-3 x=-4-√23 x=-4+√23 _ + _ +-------------[-4-√23]---[-4]----[-3]-----[-2]--------[-4+√23]--------------- ////////////////////////x∈[-3;-2]3)x>-2(x+4-x-2)(x²+8x-7)≤02(x²+8x-7)≤0-4-√23≤x≤-4+√23x∈(-2;-4+√23]Ответ x∈(-∞;-4-√23] U [-3;-4+√23]