Răspuns:
Explicație pas cu pas:
[tex]3+[ 0,4+[\frac{125}{10} *(0,3^{2}+3)-2,4]*10]=3+(0,4+(12,5*3,09-2,4]*10)=3+(0,4+(15,5-2,4)*10)= 3+(0,4+13,1*10)=3+(0,4+131)=3+131,4=134,4=\frac{1344}{10}=\frac{672}{5}[/tex]
