Answer :
x(2+1) = 2x+x = 3x
3x = 3x
2x^2 = 2x^2
2x+x = 3x
Options 1, 2, and 4 all simplify down to 3x while Option 3 does not. Therefore, the answer is 2x^2
3x = 3x
2x^2 = 2x^2
2x+x = 3x
Options 1, 2, and 4 all simplify down to 3x while Option 3 does not. Therefore, the answer is 2x^2