Respuesta :

Shxrpe

2x+x = 2x^2

X(2+1) = 2x^2

2x^2 stays the same

Therefore the answer is d 3x is not the same as the rest

Answer:

2x^2

Step-by-step explanation:

2x+x=3x

x(2+1)=2x+x=3x

3x