Răspuns:
3²⁰
Explicație pas cu pas:
[tex]{(42 : 14)}^{2} \cdot {9}^{18} : {27}^{6} = {3}^{2} \cdot {( {3}^{2} )}^{18} : {( {3}^{3} )}^{6} = \\ [/tex]
[tex]= {3}^{2} \cdot {3}^{2 \cdot 18} : {3}^{3\cdot6} = {3}^{2} \cdot {3}^{36} : {3}^{18} = {3}^{2 + 36 - 18} \\ [/tex]
[tex]= \bf {3}^{20}[/tex]
