Yes, but it's better to extend the wifi of the router not the first extender.

So you can put the router in the middle, and connect both extenders to the router's wifi.
EXT#1 )))((( Router )))((( EXT #2

If you do connect the second extender to the first one, it may make the speed slow.
Router )))((( EXT #1 )))((( EXT #2