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lim x+4x→-4 x2+x-12 1/7 7 -1/7 -7 lim x2-2x-15x→5 x-5 1/4 1/2 8 1/8 lim x3-8x→2 x-2 2 1/2 12 16 lim t2+4t-21t→3 t-3 1/10 4 10 1 lim u+1u→-1 2u2-u-3 - 1/5 -5 1/5 5 lim x3+2x-5x→-2 4x3-3 3/31 - 1/35 - 1/31 17/35 lim x2+5x+4x→-4 x2+x-12 -3/7 3/7 -5/7 5/7 lim x2+4x-32x→4 x2-16 3/5 3/4 2/3 3/2 lim 3x2-5x-2x→-1/3 3x+1 -2/7 -3/7 -7/3 -1 lim r3-64r→4 r-4 48 16 32 42 lim 6x2+7x+2x→-2/3 6x2-5x-6 -2/13 4/39 12 1/13 lim x->4 4 X2-16 X-4 -4 ∌ 8 lim x->1 0 2 ∌ 1 X2-1 X-1 1 Lim x->1 -1 x2-2x+1 x-1 2 0 Lim x->3 6 X2-9 X-9 0 -6 ∌ |