Question

(3 la puterea 15 +9la puterea 7) impartit la 3 la puterea 14

Answer 1

$(3^1^5+9^7):3^1^4=[3^1^5+(3^2)^7]:3^1^4=(3^1^5+3^1^4):3^1^4= \\ =3^1^4(3+1):3^1^4=3^1^4 \cdot 4:3^1^4=1 \cdot 4=4$