A) +10
B) 10

A) expression
B) Expression

A) equation
B) Equation

A) +4
B) 4

A) True
B) False

A) 3ab
B) 5b²a
C) ab
D) 4ba

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

A) -5x²y
B) xy²
C) -7y²x
D) 3xy²

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