The general rule on Metamagic states (emphasis mine):
You can use only one Metamagic option on a spell when you cast it, unless otherwise noted.
Meanwhile, the Seeking Spell and Empowered Spell options state(emphasis mine):
If you make an attack roll for a spell and miss, you can spend 2 sorcery points to reroll the d20, and you must use the new roll. You can use Seeking Spell even if you have already used a different Metamagic option during the casting of the spell.
When you roll damage for a spell, you can spend 1 sorcery point to reroll a number of the damage dice up to your Charisma modifier (minimum of one). You must use the new rolls. You can use Empowered Spell even if you have already used a different Metamagic option during the casting of the spell.
Unlike all the other Metamagics, these ones do not start with "when you cast a spell" but instead have their own timings. I am left unsure whether they fall under the general rule of "when you cast" and if they do, and thus would need explicit exception, I am unsure whether they actually make an explicit exception given that they use the phrase "during the casting of the spell". Do damage and attack rolls happen during the casting of a spell? Do the Metamagics happen when you cast the spell at all? In short, I'm unsure what rules apply to these, and thus do not know if these Metamagics can be used on the same spell.