Răspuns:
[tex]( \times - 3) {}^{2} + 2( \times - 1) {}^{2} = 4 \times + 3 \\ { \times }^{2} - 6 \times + 9 + 2 \times( { \times }^{2} - 2 \times + 2) = 4 \times + 3 \\ { \times }^{2} - 6 \times +9 + {2 \times }^{2} - 4 \times + 4 = 4 \times + 3 \\ 3 { \times }^{2} - 10 \times + 13 = 4 \times + 3 \\ {3 \times }^{2} - 14 \times - 10[/tex]
