Enable SQL Mixed mode authentication in SQL server

Hi,

Could some please tell me how we can enable mixed mode authentication in sql serer 2014 using power shell and create a sql login after that.

Thanks,
Madhur

First result on google:

http://sqlblog.com/blogs/allen_white/archive/2011/05/19/change-sql-servers-authentication-mode-with-powershell.aspx

Thanks Peter , but that first link on google does not work , have you tested this ?
But I used Powershell Get-Help to find out required cmdlet to do the task and it worked.

Thanks
Madhur