a)
[tex]\frac{3\cdot3^{3}\cdot9}{18} = \frac{3\cdot3^{3}\cdot3^{2}}{2\cdot9} = \frac{3^{1+3+2}}{2\cdot3^{2}} = \frac{3^{6}}{2\cdot3^{2}} = \frac{3^{6-2}}{2}=\frac{3^{4}}{2} = \frac{81}{2} = 40\frac{1}{2} = 40,5[/tex]
Wyjaśnienie:
[tex]a^{m}\cdot a^{n} = a^{m+n}\\\\a^{m}:a^{n} = a^{m-n}[/tex]
