I think you accidentally typed the expression p ⋅ (10 - 2) twice, so I'm going to assume you just meant to type it once.
Anyway, you must use the distributive property multiplying p times 10 and times -2, separately and adding the results:
p ⋅ (10 - 2)
p(10) + p(-2)
10p - 2p
8p
