Derek, Aaron and Matteo are in the same math class. Their math teacher Mr. C gave them the following expression 7(2+3x) +4x. Mr. C asked his students to create an equivalent expression. Here are the expression his students created Derek created the expression 14 +7x Aaron created 14 + 21x + 28x Matteo created the expression 9 + 7x Create your own expression that is equivalent to 7(2 + 3x) + 4x and determine if any of the expressions created by the boys are correct. If not state who is wrong and what was their mistake.