Řeš v ℝ rovnice:
\large x \left( 3\cdot 5-2 x\right) =2 x \left( 3\cdot 2-x\right)
\large K = \left \{ 0 \right \}
\large K = \left \{ -1 \right \}
\large K = \left \{ 2 \right \}
\large K = \left \{ 1 \right \}