Răspuns:
[tex] = 10 \sqrt{2} + 4 \sqrt{2} - 3 \times 2 ^{2} \sqrt{2} + 5 \sqrt{2} = 10 \sqrt{2} + 4 \sqrt{2} - 3 \times 4 \sqrt{2} + 5 \sqrt{2} = 10 \sqrt{2} + 4 \sqrt{2} - 12 \sqrt{2} + 5 \sqrt{2} = 7 \sqrt{2} [/tex]
