A) +10
B) 10

A) expression
B) Expression

A) equation
B) Equation

A) 4
B) +4

A) True
B) False

A) 4ba
B) ab
C) 5b²a
D) 3ab

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) -7y²x
B) 3xy²
C) -5x²y
D) xy²

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