If two adjectives are used to describe a noun they both will take the same case.
Ich habe den guten neuen Film gesehen
If the first of the adjectives is a possessive adjective, what declension does the secondary adjective take? Does the same rule hold true or does the subsequent adjective take the strong/weak declension?
Ich habe dir mein neu Buch geschenken.
Ich habe dir mein neue Buch geschenken.
Ich habe dir mein neues Buch geschenken.
I searched "adjectives following possessive adjectives german" on Google and all I could find were articles talking about how to conjugate the possessive adjective by themselves, which isn't the answer I'm looking for.