Up for a Brain Game?
RULES:
be the FIRST to answer
no searching answers
10pts
BRAINLIEST if correct

QUESTION:
Which of the lists below contains like terms only?
2x , -3x2 , -x y , 1/x
- x , 3 x , 4
-x , x , 4x , 0.2 x , (1/4) x
x , -3 , 99 x , 9