Greek scribes wrote Satan as "ho theos" on earth. In other word , Christians believe that Satan temporarily gets a rank equal to God when residing on earth until certain appointed time.
So its not an issue in those Greek story for equal level beings to have such conversation, in this case the story is about a false God but temporarily equal in rank, instructing 'true' God to worship the former.
U didn't answer anything, but made it more complicated than it needed to be.
First, do you believe jesus is God? If so, why does jesus say only worship God?
Secondly, satan has been given power, yes. BUT, nowhere in the bible you can find him being equal to God... He has powers, but no where near as powerfull as God. Even satan will die at the end. And who will take his spirit out of his 'body'? AN ANGEL of god! So the angel is more powerful because God works trough him.
And also God is doing his works trough jesus as bible says, right?
So jesus has god's spirit in him... And look what jesus says: i don't speak on my behalf, god does his work trough me. He is in a sense powerless, it's God doing what is need to be done.
Jesus ate and went to the bathroom. Jesus cried, prayed with his face on the ground, got very angry and a bit violent with jews in the synagogue who used it as a 'business'. Just like our prophet who broke every single statue in the kabah...