Answer:
5 · (2-6) equals 5 · (-4) which equals -20
5 · 2 - 5 · 6 equals 10 - 30 which equals -20
Explanation:
Whatever is between brackets is what you calculate first. Then multiplication goes before addition or subtraction.
Once you learn the 'distributive property' you'll see that both expressions are actually related, i.e., the "5" distributes over the 2 and the -6.