If (2 to the x) - (2 to the (x-2)) = 3 (2 to the 10), what is the value of x? Answers.
A) 9  B) 11  C) 13  D) 12  E) 17
(2 to the power x) - (2 to the power (x-2)) = 3 (2 to the power 10)   2^x - 2^(x-2) = 3. 2^10   Hence x = 12.   Answer is 12
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If (2 to the x) - (2 to the (x-2)) = 3 (2 to the 10), what is the value of x?