Respuesta :
343=7^?
divide both sides by 7
49=7^(?-1)
divide both sides by 7
7=7^(?-2)
7^1=7^(?-2)
1=?-2
3=?
answer is 7^3
divide both sides by 7
49=7^(?-1)
divide both sides by 7
7=7^(?-2)
7^1=7^(?-2)
1=?-2
3=?
answer is 7^3