\( \begin{array}{l}(2 x+5 y)^{2}=4 x^{2}+20 x y+25 y^{2} \\ 9 z^{2}+30 z+25=(3 z-5)^{2}\end{array} \)Není zaškrtnuto
\( \begin{array}{l}(2 x+5 y)^{2}=4 x^{2}+20 x y+25 y^{2} \\ 9 z^{2}+30 z+25=(3 z+5)^{2}\end{array} \)Není zaškrtnuto
\( \begin{array}{l}(2 x+5 y)^{2}=4 x^{2}+20 x y+25 y^{2} \\ 9 z^{2}+30 z+25=(3 z+4)^{2}\end{array} \)Není zaškrtnuto
\( \begin{array}{l}(2 x+5 y)^{2}=4 x^{2}+20 x y+25 y^{2} \\ 9 z^{2}+30 z+25=(3 z+6)^{2}\end{array} \)Není zaškrtnuto