a² - ab + 8b + b² - 1
There are 5 terms in the expression.
a² = 1st term
ab = 2nd term
8b = 3rd term
b² = 4th term
1 = 5th term
Each term is separated by a plus (+) sign or a minus (-) sign.
A term is either a number, a variable, or a number and a variable multiplied together.
a², ab, b² are variables.
8b is a number and a variable multiplied together
1 is a number.