Using 2 different model amps to drive one pair of patio speakers....novice questions

I am running a pair of JBL 28T speakers on the patioI have two amps acquired over the years
B&K ST2140
R Fosgate RF2000 (Bridgeable .....whatever that means)

Can I drive the pair with different amps pushing 1 speaker each or
Can I bridge them and then connect the 2 speakers to one amp and get a piggy back effect of more power

I am clearly no sound technician Thanks in advance for any help and comments
I want to use what I have acquired over the years but don't want to do something stupid