What is the average of xx, 2x2x, and 66? Choose the correct choice from the following
A) 2x+2
B) x+2x
C) x+2x+2
D) x+2
E) x
By the definition of an average, we get:   x+2x+63=3x+63x+2x+63=3x+63   =3(x+2)3=x+2.=3(x+2)3=x+2.   Hence, the answer is x+2x+2 or Option x+2x+2
<result>C</result>
What is the average of xx, 2x2x, and 66?