When I pass string variables to controller in laravel via ajax, It doesn't show me proper data

This is my Ajax Query

  function updateTask() {
    var task_id = document.getElementById('edit').getAttribute('edit_task_id');
    var newTask = document.getElementById('edit_task').value;
    var csrf = document.querySelector('meta[name="csrf-token"]').content;
    var close = document.getElementById('close');
    var editob = new XMLHttpRequest();
    editob.open('POST', '/{task_id}/{newTask}', true);
    editob.setRequestHeader('X-CSRF-Token', csrf);
    editob.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
    editob.send("task_id=" + task_id, "newTask=" + newTask);
    
    console.log(newTask);
    console.log(task_id);
  }

This is y Controller

    public function editTask($id, $newTask){
        //$x = $id->get('task_id');
         print_r($id);
         print_r($newTask);
         
    }

And this is the response I get, butI actually want the proper string value that I passed through ajax

via Chebli Mohamed