i wanted to delete an app from my iPhone but accidentally i remove it from my home screen so how i suppose to uninstall the application

If the app is only in the App Library screen (swipe left past the last Home screen), touch and hold the app there and then tap Delete app.

Note that some built-in Apple apps cannot be deleted.

If the delete option is not available, there may be a restriction set on deleting apps. On an iPhone or iPad, go to Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Deleting Apps.

See: https://support.apple.com/en-us/HT201304#prevent-purchases

I want to completey delete "two" apps from "purchased" , I know there is way to hide this apps, but I want to delete like I've never had it before. help me please.

the apps are :

1-LINE

2- Parlor: The Social Talking App

i just try all method to delete my apps but it cant be done. restart several times, using normal method uninstall like hold at a apps, turn of screen time but it still cant.

I have the same problem. I tried everything that I found on the web.

You cannot delete apps from your Purchased list. That is not allowed. As you already know, hide is the only option.