Ajax request with PHP does not recognize scripts

Question

I am creating a code, where I send a form with ajax and return the result obtained in a PHP(comment.php) file, but this file ignores the linked scripts on the page where the form is contained (question.php):

Ajax code (question.php):

    jQuery(document).ready(function(){
    jQuery('.formcomment').submit(function(){

    var dados = jQuery( this ).serialize();

       jQuery.ajax({
         type: "POST",
         url: "comment.php",
         data: dados,
         success: function(response){

          var editorContent = tinyMCE.get('camporesposta').getContent();
          if (editorContent == "" || editorContent == null){
           $("#aviso").html("<div class='alert alert-warning alert-dismissible' role='alert'><button type='button' class='close' data-dismiss='alert' aria-label='Close'><span aria-hidden='true'>&times;</span></button><strong><i class='fa fa-meh-o'></i> Preencha o campo de resposta!</strong></div> ");
          } else{
            $("#aviso").html("<div class='alert alert-warning alert-dismissible' role='alert'><button type='button' class='close' data-dismiss='alert' aria-label='Close'><span aria-hidden='true'>&times;</span></button><strong><i class='fa fa-meh-o'></i> Resposta inserida com sucesso!</strong></div> ");
             document.getElementById("ajaxrespostas").innerHTML=response;
            }



         }
        });
        return false;
      });
    });

In this file Linkei the scripts below:

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script  type="text/javascript"  src="node_modules/bootstrap/js/tinymce/tinymce.min.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-MML-AM_CHTML' async></script>
<script type="text/javascript" src="node_modules/bootstrap/js/tinymce/plugins/tiny_mce_wiris/tests/js/google_analytics.js"></script>

However, when returning the page (comment.php) in the "Answer" variable defined in ajax code, it simply fails to recognize the above scripts:

comment.php:

<?php 
    require_once 'db.php';
    include 'functions.php';
?>

<?php

    // Variável enviada do formulário 
    $resposta= $_POST['resposta'];
    $idpergunta= $_POST['idPergunta'];

    if ($resposta == null){
        echo "falha";
        die();

    } else{


    $sql = "INSERT INTO respostas (texto, idUsuario, datapostagem, idPergunta) VALUES ('$resposta', '$iduser', current_date, '$idpergunta')";
    $insert = $mysqli->query($sql);

    include("comentarios.php");
}

result (question.php page, initially with scripts being recognized):

result after the ajax request is made (question.php page with the comment.php page returned in the Response variable, unrecognized scripts)

as you can see, the scripts responsible for the text editor and mathematical formulas are not loaded.