Question

va rooog e super urgent 8:macar una din ele

Answer 1

$(2 ^{n+2} *7^{n} +14^{n} ):5= \\ \\ (2 ^n*2^{2} } *7^{n} +14^{n} ):5= \\ \\ (4*14 ^{n} +14^{n} ):5= \\ \\ 14^{n} (4+1):5= \\ \\ 14^{n} *5:5= \\ \\ =14^{n}$