1_ they carry the same meaning.But 你慢点说，我听得懂 is more common. 2-我说的话 means what I said so 我说的话，你能听懂吗？means Do you know what i said? 3.谈话 means talk / chat / conversation

1_ are these sentence same in meaning! 你慢点说，我听得懂。（I can't understand what this sentence mean.我听得懂 means you can understand,but if you could understand,why you let someone to speak slowly?） 你慢点说，我听懂。(This sentence is wrong.it may be"你慢点说，我没听懂。") 2、In the sentence,"说的话"means what you just sayed. 3、 In this sentence,"谈话"is equal to "talk with"