1.
[tex]a) \ rabarbar=aaabbrrr = a^{3}b^{2}r^{3}\\\\b) \ banan =aabnn= a^{2}bn^{2}\\\\c) \ tatarak =aaakrtt= a^{3}krt^{2}[/tex]
2.
[tex]a) \ 3x+15x = 18x\\\\b) \ 6x - \frac{1}{2}x = 5\frac{1}{2}x\\\\c) \ 2,4x + 1,8x = 4,2x[/tex]
