A) 10
B) +10

A) expression
B) Expression

A) equation
B) Equation

A) +4
B) 4

A) True
B) False

A) 4ba
B) 3ab
C) ab
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) -7y²x
B) xy²
C) -5x²y
D) 3xy²

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