How can you use expressions and models to determine if expressions are equivalent

To check for equivalence, use properties of operations such as the Distributive Property. Two expression are said to be equivalent if they resulted in the same number after evaluation of each. You can both expand and factor expressions to generate equivalent expressions. 

c is the correct answer

step-by-step explanation:

the square root of what number? if you add that, then someone will probably answer the question.