public function deleteBulk(Request $request)
 {
     // if the table_records is empty we redirect to the subject index
     if (!$request->has('table_records')) {
         return redirect()->route('f.category.index');
     }
     // we get all the ids and put them in a variable
     $ids = $request->input('table_records');
     // we delete all the subject with the ids $ids
     $answer = QuestionsAnswers::find($ids[0]);
     QuestionsAnswers::destroy($ids);
     // we redirect to the user index view with a success message
     return redirect()->route('f.questionanswer.index', $answer->cat_id)->with('success');
 }