A) 10
B) +10

A) Expression
B) expression

A) equation
B) Equation

A) 4
B) +4

A) True
B) False

A) ab
B) 3ab
C) 4ba
D) 5b²a

A) the same group of letters in the same order only
B) the same number of letters
C) the same group of letters which have the same powers

A) xy²
B) 3xy²
C) -5x²y
D) -7y²x

A) 5a²c³b
B) -4ba²c³
C) 2ab³c³
D) 2abc
E) 2a²bc³