Laravel app edit is showing MethodNotAllowedHttpException

<form action="" method="post" style="border:1px solid #ccc">

these are my two routes for edit and update.

Route::get("{id}/edit", 'HomeController@edit')->name('edit');
Route::post('update', 'HomeController@update')->name('update');

thi is my controller

public function update(Request $request, $id){
    $arr = User::find($id);
        $name->name = $request->input('name');
        $email->email = $request->input('email');
        $password->password = $request->input('password');
    $arr->save();
return redirect('/');
}

via Chebli Mohamed