Răspuns: [tex]\boxed{5\cdot(5^{9} -1)}[/tex]
Explicație pas cu pas:
[tex][(5^{3} )^{12}:5^{25}-25]:5= (5^{3\cdot 12} :5^{25}-5^{2} ):5=[/tex]
[tex](5^{36} :5^{25}-5^{2} ):5=(5^{36-25} -5^{2} ):5=(5^{11} -5^{2} ):5=[/tex]
[tex]5^{2}\cdot(5^{11-2} -5^{2-2}):5=5^{2}\cdot(5^{9} -5^{0}):5=5^{2-1}\cdot(5^{9} -1)=[/tex]
[tex]\boxed{5\cdot(5^{9} -1)}[/tex]
