2:(2pe3)la puterea2+11pe5:11pe10
________________________
2:(2/3)^2+(11/5):(11/10)
________________________
[tex]\it 2:\Big(\dfrac{2}{3}\Big)^2 +\dfrac{11}{5}:\dfrac{11}{10}=\dfrac{2}{1}:\dfrac{4}{9}+\dfrac{11}{5}\cdot\dfrac{10}{11}=\dfrac{2}{1}\cdot\dfrac{9}{4}+2=\dfrac{9}{2}+2=4,5+2=6,5[/tex]