Question

All of the following are equivalent, except _____.

2x + x

x(2 + 1)

2x²

3x

Answer 1

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 2

2x^2

Explanation:

2x+x=3x

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

3x