If (2 to the x) - (2 to the (x-2)) = 3 (2 to the 5), what is the value of x?
Choose the correct option.
A) 7
B) 11
C) 13
D) 15
E) 17

Rationale: "( 2 to the power x ) - ( 2 to the power ( x - 2 ) ) = 3 ( 2 to the power 5 ) 2 ^ x - 2 ^ ( x - 2 ) = 3 . 2 ^ 5 hence x = 7 . answer is a"
Answer: A