How Can I Deindex Unwanted Pages from SERP?

[nairprasad8]

Recently I searched my site with "site:xyz.com" method for checking how many of my website pages has been indexed in SERP their I saw many unwanted pages has been crawled by Google with same Meta description that will definitely hit my website in panda.
Pages example: xyz.com/page1
xyz.com/page2
xyz.com/page3
xyz.com/page4
xyz.com/image
xyz.com/image

Please how can I permanently fixed this issue reply soon.

[rohit]

You can unindex pages and prevent them from being indexed by using your robots.txt file.

[nairprasad8]

You can unindex pages and prevent them from being indexed by using your robots.txt file.

Thanks for the reply. I will definitely do.

[dennis123]

Remove those unwanted pages from your site and also from sitemap.