Răspuns:
[tex] - {a}^{6} {b}^{3} [/tex]
[tex] \frac{1}{9} {x}^{2} {y}^{4} {z}^{6} [/tex]
[tex]2 \sqrt{2} {a}^{3} {b}^{6} {c}^{3} [/tex]
