How many terms are in the expression shown below? a2 - ab + 8b + b2 - 1

5



Explanation:

Each term is separated by a plus (+) or a minus (-) sign

The terms are:

first term = a^2
second term = ab
third term = 8b
fourth term = b^2
fifth term = -1

showing that there are 5 terms total.

2.) is the most sense