how can I reset my iPad to factory with out having the apple password

If you were the original purchaser and can prove it with

a receipt from Apple or Apple authorized iPad retailer showing

the serial number of the iPad, make a genius bar

reservation and bring in the receipt, iPad, and government

issued photo ID to Apple and they may assist in resolving the problem.

If the iPad was purchased used or there is no receipt, the AppleID and passcode must be recovered 

It is highly recommended that you make a Genius Bar Reservation to avoid delay at the Apple store

https://www.apple.com/retail/geniusbar/

Otherwise, you will have to recover the password:

If you forgot your Apple ID password  - Apple Support

There is no workaround for the security features of Activation Lock.

Activation Lock page: https://al-support.apple.com/#/getsupport