Řeš v ℝ nerovnice:
\large \left( x-1\right) ^2-\left( x+1\right) ^2 \lt 8
\large K = \left( { - 3;\infty } \right)
\large K = \left( { - 2;\infty } \right)
\large K = \left( { - 2;5 } \right)
\large K = \left( { 0;\infty } \right)