reCAPTCHA nasıl eklerim aşağıdaki koda?

Aşağıdaki koda reCAPTCHA kodunu nasıl ekleyebilirim? reCAPTCHA kodları aşağıdaki gibidir. Biri düzenleyerek cevaplayabilir mi? Teşekkürler
<script src="https://www.google.com/recaptcha/enterprise.js?render=keyid"></script>
<script>
grecaptcha.enterprise.ready(function() {
grecaptcha.enterprise.execute('keyid', {action: 'login'}).then(function(token) {
...
});
});
</script>

veya
<script src="https://www.google.com/recaptcha/api.js"></script>
veya
<button class="g-recaptcha"
data-sitekey="reCAPTCHA_site_key"
data-callback='onSubmit'
data-action='submit'>Submit</button>

veya
<script>
function onSubmit(token) {
document.getElementById("demo-form").submit();
}
</script>

<div class="row form-contact" id="IletisimForm">
                            <form id="contact-form" class="label-placeholder" action="ajax.php?p=iletisim" method="post">
                                <div class="row clearfix">
                                    <div class="form-group">
                                        <input id="contact-name" type="text" name="name" class="input-control" placeholder="<?=dil('TX32');?>">
                                    </div>
                                    <div class="form-group">
                                        <input id="contact-email" type="text" name="email" class="input-control" placeholder="<?=dil('TX33');?>">
                                    </div>
                                    
                                </div>
                                <div class="form-group">
                                    <textarea  id="contact-textarea"  class="input-control" placeholder="Mesajınız" name="message"></textarea>
                                </div>
                                <div class="form-group">
                                    <button style="cursor:pointer;font-family:Titillium Web;" type="submit" class="btn btn-alter btn-border btn-border-brown" id="submit-contact"><?=dil('TX34');?></button>
                                </div>
                            </form>
                        </div><!-- /.form-contact -->

<div class="row form-contact" id="Gonderildi" style="display:none">
                        <?=dil('TX91');?>
                        </div>

<script src="https://js.hcaptcha.com/1/api.js" async defer></script>

<center>
                        <div class="h-captcha" data-sitekey="sitekey "></div>
                      </center>
                      <br />
                      <script>
                        var hcaptcha = document.querySelector(".h-captcha");
                        hcaptcha.setAttribute("data-callback", "hcaptchaCallback");
                        hcaptcha.setAttribute("data-expired-callback", "hcaptchaExpiredCallback");
                        function hcaptchaCallback() {
                          document.getElementById("mybutton").disabled = false;
                        }
                        function hcaptchaExpiredCallback() {
                          document.getElementById("mybutton").disabled = true;
                        }
                        document.getElementById("mybutton").disabled = true;
                        function hcaptchaReset() {
                          hcaptcha.reset();
                        }
                        function hcaptchaExecute() {
                          hcaptcha.execute();
                        }
                      </script>

Hocam recaptcha yı bilmem ama ben hcaptcha yı bu şekilde yapıyorum hcaptcha daha iyi geldiğinden onu kullanıyorum

Tam olarak aradığınız şey bu mu bilmiyorum ama bu şekilde yapılabilir.

<div class="row form-contact" id="IletisimForm">
    <form id="contact-form" class="label-placeholder" action="ajax.php?p=iletisim" method="post">
      <div class="row clearfix">
        <div class="form-group">
          <input id="contact-name" type="text" name="name" class="input-control" placeholder="<?=dil('TX32');?>">
        </div>
        <div class="form-group">
          <input id="contact-email" type="text" name="email" class="input-control" placeholder="<?=dil('TX33');?>">
        </div>
      </div>
      <div class="form-group">
        <textarea id="contact-textarea" class="input-control" placeholder="Mesajınız" name="message"></textarea>
      </div>
      <div class="form-group">
        <div class="g-recaptcha" data-sitekey="keyid"></div>
      </div>
      <div class="form-group">
        <button style="cursor:pointer;font-family:Titillium Web;" type="submit" class="btn btn-alter btn-border btn-border-brown" id="submit-contact"><?=dil('TX34');?></button>
      </div>
    </form>
  </div>
  <div class="row form-contact" id="Gonderildi" style="display:none">
    <?=dil('TX91');?>
  </div>
  <script src="https://www.google.com/recaptcha/api.js"></script>