lim┬(x→-1)⁡(-4x^2+x^3-7)
lim┬(x→2)⁡├ (x-2)/(√x-1-1)┤
lim┬(x→∞)⁡├ 2x/(3x-1)┤
lim┬(x→6)⁡├ (2x^2-11x-6)/(5x^2-28x-12)┤
lim┬(x→0)⁡├ 2sinx/56┤