Question

All of the following are equivalent, except.

A. 2X + X
B. X(2+1)
C.2X squared
D. 3x

Answer 1

in my opinion it is c

Answer 2

Here, we need to solve all of them:
2x + x = 3x
x(2+1) = 3x
2x²
3x
[There expressions are equal here except 2nd last ]

In short, Your Answer would be Option C.

Hope this helps!