Question

All of the following are equivalent except
7x2
4x+3x
(4+3)x
7x

Answer 1

4x+3x,(4+3)x, and 7x are equivalent except 7x^2

Let's solve:

4x+3x=7x

(4+3)x=7x

Hope it will help u...

Answer 2

7x2

Explanation:

7x2 is 14 and all the other ones equal 7