Řeš v ℝ rovnice:
\large 2 x^{2}-3 x+2,1-\left( 2+x\right) ^{2}=x^{2}+x-33,9
\large K = \left \{ 3 \right \}
\large K = \left \{ 4 \right \}
\large K = \left \{ -4 \right \}
\large K = \left \{ 5 \right \}